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  <front>
    <journal-meta />
    <article-meta>
      <title-group>
        <article-title>The approaches to Web-based education of computer science bachelors in higher education institutions</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <string-name>Svitl</string-name>
        </contrib>
        <contrib contrib-type="author">
          <string-name>L. Proskur</string-name>
          <email>slproskura@gmail.com</email>
          <xref ref-type="aff" rid="aff1">1</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Svitl</string-name>
        </contrib>
        <contrib contrib-type="author">
          <string-name>H. Lytvynov</string-name>
          <email>s.h.lytvynova@gmail.com</email>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <aff id="aff0">
          <label>0</label>
          <institution>Institute of Information Technologies and Learning Tools of the NAES of Ukraine</institution>
          ,
          <addr-line>9 M. Berlynskoho Str., Kyiv, 04060</addr-line>
          ,
          <country country="UA">Ukraine</country>
        </aff>
        <aff id="aff1">
          <label>1</label>
          <institution>National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”</institution>
          ,
          <addr-line>37 Peremohy Ave. Kyiv, 03056</addr-line>
          ,
          <country country="UA">Ukraine</country>
        </aff>
      </contrib-group>
      <fpage>609</fpage>
      <lpage>625</lpage>
      <abstract>
        <p>The problem of organizing of Web-based education of bachelors, and the bachelors of computer science in particular, is relevant for higher education institutions. The IT industry puts forward new requirements for future IT professionals training. This, in its turn, requires the educational process modernization: content specification, updating of forms, methods and means of training to meet the demands of socio-economic development of the society in general and bachelors of computer science in particular. The article analyzes and clarifies the notion of Web-based education of bachelors; as well as a line of approaches, such as approaches to the organization of Web-based learning for A La Carte, Station Rotation, Lab Rotation, Individual Rotation, Flipped Learning scenario; the necessity of cloud computing and virtual classroom use as a component of Web-based learning is substantiated. It is established that with the advent of a large number of cloud-based services, augmented and virtual realities, new conditions are created for the development of skills to work with innovative systems. It is noted that the implementation of the approaches to the organization of student Web-based education is carried out on international level, in such projects as Erasmus+ “Curriculum for Blended Learning” and “Blended learning courses for teacher educators between Asia and Europe”. The article features the results of programming students survey on the use of Web-based technologies while learning, namely the results of a new approach to learning organization according to the formula - traditional (30%), distance (50%) and project (20%) training.</p>
      </abstract>
      <kwd-group>
        <kwd>information and communication technologies</kwd>
        <kwd>Web-based education</kwd>
        <kwd>approaches to Web-based education organization</kwd>
        <kwd>cloud computing</kwd>
        <kwd>distance learning</kwd>
        <kwd>inverted learning</kwd>
        <kwd>online learning</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body>
    <sec id="sec-1">
      <title>-</title>
      <p>Ukraine’s entry into the Bologna process stimulates the formation of new principles
and approaches to the development of higher education. This, in its turn, requires the
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Attribution 4.0 International (CC BY 4.0).
improvement of forms, methods and tools aimed at creating a coherent system of
continuing education. The requirements for the results of student’s studies at
universities orientate the teacher to the use of tools that are adequate to the level of
development of modern technologies, processing and transmission of information, and,
which is equally important, for the needs of students of the new millennium. It is
becoming obvious that the tools basis of the educational process in higher education
institutions should be made by means and services of ICT, augmented and virtual
realities [14; 24], cloud-based and network technologies [20; 32]. The teacher should
help students to initiate an internal desire to perceive the world around them with the
Internet and high-tech tools which are able to create conditions for universal access to
educational content as well as the latest ICT learning systems in order to make this
desire a natural need.</p>
      <p>
        In particular, the expected results of the adoption of the Law of Ukraine “On
Education” [
        <xref ref-type="bibr" rid="ref37">37</xref>
        ] are the creation of a new generation education system that has to
provide conditions for education to be received by all categories of the population of
Ukraine, an effective system for ensuring comprehensive human development and
promoting substantial growth of intellectual, cultural, spiritual and moral potential of
the society and personality [
        <xref ref-type="bibr" rid="ref39">39</xref>
        ].
      </p>
      <p>
        Therefore, today we are actively discussing the approaches to the Web-based
education [
        <xref ref-type="bibr" rid="ref9">9</xref>
        ] of bachelors in Ukrainian universities, and, in particular, for future
bachelors of computer science training, which requires substantiation of such
provisions as motivational, technological, procedural support of the educational process
as a holistic pedagogical system that takes into account individual interests, abilities
and inclinations and the newest strategies of teaching the 21st century students.
2
      </p>
    </sec>
    <sec id="sec-2">
      <title>Literature review and research methods</title>
      <p>
        Different aspects of Web-based bachelor education in the system of higher education
institutions are highlighted in the works of Olga V. Bondarenko [
        <xref ref-type="bibr" rid="ref2">2</xref>
        ], Valerii Yu. Bykov
[
        <xref ref-type="bibr" rid="ref3">3</xref>
        ], Svitlana H. Lytvynova [
        <xref ref-type="bibr" rid="ref8">8</xref>
        ], Oksana M. Markova [
        <xref ref-type="bibr" rid="ref31">31</xref>
        ], Oleg M. Spirin [
        <xref ref-type="bibr" rid="ref33">33</xref>
        ], Andrii
M. Striuk [
        <xref ref-type="bibr" rid="ref34">34</xref>
        ], Serhiy O. Semerikov [
        <xref ref-type="bibr" rid="ref23">23</xref>
        ], Tetiana A. Vakaliuk [
        <xref ref-type="bibr" rid="ref11">11</xref>
        ] et al.
Organizational-active, general-didactic, methodological and psychological aspects are
considered in their studies.
      </p>
      <p>
        Valerii Yu. Bykov [3; 4] analyzed a model of organizational systems of open
education, the use of which is possible while using Web-based technologies, examined
distance learning as a component of Web-based learning. In their works, Oleg M. Spirin
and Tetiana A. Vakaliuk [10; 33] consider the main possibilities of using different types
of Web-based technologies and their analysis in programming training, while Svitlana
H. Lytvynova states that cloud-based learning environment is a component of
Webbased learning and emphasizes that synthetic web environment has to be Web-based in
order to prepare bachelors of computer science as well as to enable students to engage
in innovative learning tools [17; 19]. Serhiy O. Semerikov and Andrii M. Striuk
proposes the organizational model of blended learning in universities, which involves
the use of a learning management system and reflects the current state of development
of theory and methodology of using ICT in education [
        <xref ref-type="bibr" rid="ref35">35</xref>
        ], Volodymyr M. Kukharenko
et al. research Web-based learning as a combination of traditional and online learning
elements [12; 13]. Yurii V. Tryus and Inna V. Herasymenko [
        <xref ref-type="bibr" rid="ref40">40</xref>
        ] treats Web-based
learning as a purposeful process of knowledge acquisition, skills acquiring, with the
aim of improving the quality of education. Scientists at the Clayton Christensen
Institute consider Web-based learning as a combination of new, disruptive technology
[
        <xref ref-type="bibr" rid="ref1">1</xref>
        ].
      </p>
      <p>Methods. This article examines such research methods as theoretical sources
analysis, studying the advanced experience of foreign and domestic experts in the
problem of using ICT for teaching students of technical institutions of technical higher
education institutions, as well as surveys, questionnaires, modeling.
3</p>
    </sec>
    <sec id="sec-3">
      <title>Research results</title>
      <p>Rapid development of information and communication as well as Web-based changes
the principles and approaches to teaching programming to bachelors of computer
science in higher education institutions. There accordingly appears a need to rethink
and restructure the learning process itself, update the content of the educational
program, forms, means and teaching methods. It is both learning technologies and the
approaches to the Web-based education organization which are changing rapidly and
significantly, the education of computer science bachelors in particular.</p>
      <p>We understand Web-based learning as a system of forms, methods and Web-based
tools for the formation of professional competences of bachelors of computer science.
One of most advanced and effective technologies is blended learning, which will serve
as the basis for the introduction of innovative technologies, and Web-based learning in
higher education institutions in particular.</p>
      <p>The system of Web-based education has become widespread in Europe and the
United States. Its rapid implementation was facilitated by the development of
information and communication technologies, technical (computer) equipping of
students, their high level of computer literacy as well as their ubiquitous Internet access.
An important contribution to addressing the problem of Web-based education was
implemented by the Online Learning Consortium, which continues dealing with the
challenges associated with the Web-based education organization, improving the
quality of online learning throughout the world [38, р. 99].</p>
      <p>A significant contribution to the dissemination of the latest infrared technologies in
higher education has been made through a number of international projects, including
the latest learning strategies the Erasmus+ “Curriculum for Blended Learning” project,
which involves the following countries: Latvia, Austria, Great Britain is devoted to
innovative educational strategies. This project aims at raising national and European
understanding of Web-based education, implementing the goal of integrating ICT into
the process of learning, combining innovative practices with systematic,
scientificallybased strategies for ICT integration [38, р. 100]. Recent studies at the Center for the
Digital Education show that 90% of the teachers interviewed use creative approaches
in teaching subjects using Web-based education technologies [5, p. 4]. In Ukraine,
Web-based education technology is only beginning its way.</p>
      <p>
        Various definitions of it can be found in the works of scientists doing their research
in the field of educational methodology. In their report on the potential effects and
approaches to the Web-based education technology implementation the Sloan
Consortium defined the means of hybrid or blended education as ones which integrate
online with traditional face-to-face class activities in a planned, pedagogically valuable
manner. Michael B. Horn and Heather Staker see Web-based education itself as an
educational approach which uses online technology to not just supplement, but
transform and improve the learning process [
        <xref ref-type="bibr" rid="ref7">7</xref>
        ].
      </p>
      <p>
        Scientists at Clayton Christensen Institute describe Web-based education as a
combination of the new, disruptive technology with the old technology, which
represents a sustaining innovation relative to the old technology, and is actually focused
on mechanical blending, i.e. combining old traditional methods of teaching with new
ways arising due to the advanced technologies, which appear to be innovative in
relation to old technology and, which is most important, do not offer the old technology
in its full form [
        <xref ref-type="bibr" rid="ref1">1</xref>
        ].
      </p>
      <p>Ukrainian experts are now at the start of the Web-based education technology
implementation as well as its analyzing. Basing on experience and works of their
foreign colleagues they are developing approaches to Web-based education,
methodology and a system of practical recommendations which can be applied in the
higher education institutions of Ukraine. Thus, Volodymyr M. Kukharenko states that
disruptive approaches to bachelor’s education organization give a new impetus to the
development of education, they are more effective, accessible, individualized, and they
will over time prevail over traditional approaches to education organizing. He also
states that Web-based education as a disruptive technology can not appear on its own.
Preconditions for its emergence have to be formed, as well as additional efforts, both
from teachers and students’ part are required during its implementation and
development. [12, p. 54].</p>
      <p>Yurii V. Tryus treats Web-based education as a purposeful process of acquiring
knowledge, skills and abilities, as well as mastering the methods of cognitive activity
by the subject of learning and developing his creative abilities on the basis of complex
and systematic use of traditional, innovative pedagogical technologies and information
and communication technologies training on the principles of mutual complementation
in order to improve the quality of education [40, p. 304]. Web-based learning is an
educational concept that combines traditional learning with distance education and
online methods which allows students to control the time, place, trajectory, and pace of
learning, Kostiantyn A. Lisetskyi notes [15, p. 2].</p>
      <p>In particular, Valerii Yu. Bykov emphasizes that distance learning is a kind of
training that is fundamentally based on the use of information and communication
technologies where active participants of the learning process perform mainly
individualized learning interaction both asynchronous and synchronous in time [4,
p. 34].</p>
      <p>Volodymyr M. Kukharenko et al., after analyzing works of various authors, specify
that Web-based education is:
─ combination of elements of traditional education and online learning;
─ combination of elements of traditional education and online learning;
─ combination of pedagogical theories and technologies;
─ educational methodology of teaching and approach that combines traditional
methods used in a classroom with computer learning activities;
─ the result of integrating online courses with traditional training;
─ combination of different technologies into a single integrated learning approach;
─ learning program which contains a mix of auditorium and e-learning, a range of
formats and media [13, p. 49-50].</p>
      <p>Marina S. Nikitina represents approaches to Web-based education as a process that
involves creating a comfortable educational information environment, a
communications system that presents all the necessary training information. In this
context, the information environment of a modern university is understood as a
combination of traditional and innovative (electronic) forms of learning with the
continuous build-up of information and communication technologies (ICTs) and digital
resources, as well as constant improvement [25, p. 2].</p>
      <p>
        Scientists at Clayton Christensen Institute (the USA), in their definition of blended
learning as a part of Web-based learning emphasize that blended learning involves
leveraging the Internet to afford each student a more personalized learning experience,
including increased student control over the time, place, path, and/or pace of learning.
They imply that Web-based learning has high potential. And it is not only the
approaches to the organization, technology selection and ways of learning, the main
idea is defined as the personalization of learning [
        <xref ref-type="bibr" rid="ref6">6</xref>
        ]. According to foreign experts
personalized education involves the following major trends: deep student-centered
learning experience, engaging more digital learners, building up higher-order thinking
skills, realizing benefits for both teachers and students, blended and iterative approach,
productive gamification etc. [
        <xref ref-type="bibr" rid="ref1">1</xref>
        ]. All students are different, they perceive information
in different ways, at different rates. There is no “correct” way of mastering knowledge.
It is the Web-based learning and blended learning as the basis of it that aim at helping
students, who, in their turn, will be able to receive knowledge both on their own and
with a teacher, as well as make a flexible individual training schedule etc.
      </p>
      <p>Web-based education appears to be popular and is successfully used in various
higher education institutions in Europe, the USA, Asia, Russia, Ukraine both by
teachers and students. Ukrainian experts are now at the start of the Web-based
education technology implementation as well as its analyzing. Basing on experience
and works of their foreign colleagues they are developing approaches to Web-based
education, methodology and a system of practical recommendations which can be
applied in the higher education institutions of Ukraine.</p>
      <p>Let’s consider the main approaches to the organization of Web-based education for
students, in particular, the bachelors of computer science in higher education
institutions.</p>
      <p>
        The approach to Web-based education organization with A La Carte scenario implies
doing and learning a teacher’s online course aimed at accompanying other kinds of
learning. The A La Carte scenario gives the students an option to take an online course
with an online teacher and develops a more flexible schedule as well. A La Carte
scenario courses can become a perfect option when educational institutions have no
learning capacity for students with special needs. It is considered to be one of the most
popular Web-based education organization approach [
        <xref ref-type="bibr" rid="ref7">7</xref>
        ]. For example, the well-known
Coursera platform at Stanford University in the United States which follows this
scenario offers a large number of free courses in various disciplines, including
programming
      </p>
      <p>
        The Prometheus project is a public project for open online courses in Ukraine. The
purpose of the project is to provide access to online courses for all people interested in
the topic. On this platform, the courses are presented not only by the teachers of the
leading Ukrainian higher education institutions, but also by professors from other
countries. For example, since 2016, the course “CS50: Fundamentals of Programming”,
[
        <xref ref-type="bibr" rid="ref26">26</xref>
        ], built as a lecture by Harvard University, has been actively used in Ukrainian
higher education institutions in the blended learning format. A student or any other
person may have access to video collections recorded directly in the auditorium in live
communication, to summaries, tasks, additional video materials and workshops from
leading experts in the field of computer science. It is worth while saying that in 2015
Yale University refused from their own introductory course of programming for
freshmen in favor of using CS50, and this practice continues as long as present days.
      </p>
      <p>The approach to Web-based education with Station Rotation scenario is applied for
rotating in one classroom or a group of classrooms, where at least one of the stations is
connected with online learning. The organization of training in this approach provides
that several lessons are held in regular classes (front-end teacher-student work), and
after that – students go to a computer class where they individually work on computers
or tablets to consolidate knowledge.</p>
      <p>
        The Lab Rotation approach to Web-based education contains a lot of points which
are similar to the Station Rotation approach. The difference is that the Station Rotation
Model implies students moving within the classroom allocated for them. In the Lab
Rotation students move to an educational laboratory where they conduct online tutorials
[
        <xref ref-type="bibr" rid="ref7">7</xref>
        ]. The Individual Rotation scenario to Web-based education organization approach
enables each student to study with an individualized program mode and individual
schedule. Students rotate within their individual schedule developed by the teacher [
        <xref ref-type="bibr" rid="ref7">7</xref>
        ].
The approach to Web-based education organization following the Flipped Classroom
scenario assumes that students, with the help of various gadgets, listen to and review
video tutorials, study additional informational sources individually (in extra-curricular
time), after that they discuss new concepts and different ideas in-auditorium, where the
teacher helps to apply in practice the knowledge they gained. This is the type studying
process organization which encourages students to learn from each other [16, р. 235].
Individual exercises, practical tasks and independent work are also performed by
students online. In other words, this approach “exchanges” classroom work and
homework at home students do passive learning (i.e. reading and video lecture
watching) while in the lecture room they do active learning by discussing the material
more deeply.
      </p>
      <p>Thus, Svitlana H. Lytvynova proves the general advantages of the Web-based
education within the Flipped Learning scenario, namely: conditions for active learning
are created, a differential approach is implemented, various gadgets and latest
technologies are used, the educational process is organized taking into account the
needs of each individual student; conditions for team work are created; students develop
leadership skills within the curriculum, the process of learning obtains personalized
traits, active interaction between the teacher and the student is created, access to
educational materials is enlarged; conditions for monitoring the knowledge level with
the help of computer technologies are created; parents have the opportunity to
participate in the child’s educational process [16, p. 35].</p>
      <p>While analyzing different aspects of the use of Web-based education of bachelors of
computer science in higher education institutions of Ukraine, it is worth dwelling on
the Web-based education organization for technical disciplines, which was proposed
by the scientists working in the team guided by Volodymyr M. Kukharenko. This
approach is considered as a methodical system, which is based both on face-to-face
learning and on-line technologies (distance learning) and provides a coherent
understanding of the content, internal structure, interconnection and interdependence
of the elements of the process of teaching technical disciplines. [13, p.268]. Basing on
the results of their own research as well as the research of foreign scientists, they offer
a combination of 30% of traditional learning technologies and 70% of distance learning
technologies. Classical didactic principles were used within the scope of this approach
to Web-based education: consciousness, visibility, systematic, durability, accessibility,
scholarly learning, as well as theory and practice close interconnection [13, p. 261].
The principles of MOOC (Massive Open Online Course) were considered as well as
the principles of co-operation pedagogics and social education.</p>
      <p>It is worth noting that while using the Web-based education, teachers use
methodology which includes: forms (individual, group, collective), methods (heuristic
conversation, brainstorming, discussion, situational analysis, the method of projects,
training quest, etc.), tools (laboratory models, virtual simulators, electronic textbooks,
etc.).</p>
      <p>
        One of the approaches to the Web-based education system implementation in higher
education institutions of Ukraine is the use of the Moodle [
        <xref ref-type="bibr" rid="ref21">21</xref>
        ]. The teacher uses the
Moodle environment to place educational and methodological material on the discipline
in various formats: text, graphics, animation, hypertext etc. Video tutorials are also
placed within the Moodle in order to increase the students’ motivation to study the
educational material. The Moodle system gives the student access to his resources,
which makes it possible to study the discipline. The student independently studies the
educational material, performs the necessary training tasks, takes testing procedures in
the form of exams, questionnaires, tests as well as gets involved in the forum, e-mail.
This allows students to communicate with both groupmates and the teacher and ask
questions without having to wait for the lecture. But, as noted by Galina A.
Cherednichenko and Liudmyla Yu. Shapran, the teacher needs to clearly organize the
educational process, stimulate self-control and develop different ways of productive
work with students. An important factor is the formation of a stable motivation for
educational and cognitive activity, which has to be maintained throughout the whole
learning process [5, р. 11].
      </p>
      <p>It is important to add that Web-based education methodology will work efficiently
involving the following:
─ interactive online learning environment;
─ high-quality dynamic content (personalization of student’s training, the use of
adaptive technologies, coordination with national standards);
─ analytical capabilities of learning management systems (LMS);
─ automatization of the teacher’s work;
─ students’ motivation [13, p. 270].</p>
      <p>An important factor in approaches to Web-based computer science bachelor education
is to ensure that programmer students have access to innovative resources which are
implemented on Web-based technology basis which comes as a powerful tool for
ubiquitous access to information and software systems [30, p. 104]</p>
      <p>It is worth noting that one of the important points in Web-based training of Computer
Sciences Bachelors is non-auditorium work, the proper organization of which requires
the following conditions: student’s motivation for independent work; availability and
accessibility of educational and methodological support and reference materials;
availability of computer classes; a system of regular quality control of independent
studying; counseling teacher assistance [28, p. 5]</p>
      <p>Studying approaches to the organization of Web-based training in the research of
foreign and domestic scientists, as well as analyzing their long-term experience of
teaching programming languages and checking the results of students in practice, the
authors concluded that it is advisable to combine 30 % of innovative learning
technologies and 20% of project learning technologies in Web-based learning. Project
learning includes teacher – student collaborative work, teamwork and project
(miniprojects development) activities of students. In the article, the authors demonstrated
model of Web-based learning of Computer Science Bachelors (Fig. 1), which is
presented as a set of the following components.
─ independent work of the student with educational material at any place, at any time
(in the classroom, at home, in another country, in transport, with the help of virtual
class, by means of Moodle);
─ use of Web-based environments: innovative tools (cloud computing, virtual class),
skills of working with innovative systems (Web-based compilers (GitHub, AWS
Cloud), programming environments, intelligence cards, automated systems of
programming knowledge assessment);
─ control of Computer Sciences Bachelor academic achievements. If a student is not
satisfied with the level of academic achievement, he/she can complete additional
tasks and increase his/her level.</p>
      <p>Cloud services and cloud platforms, which appear as part of cloud-based learning
environment, are used in the educational process to enhance professional competencies
of computer science bachelors. As noted by Svitlana H. Lytvynova, the Cloud-Based
Learning Environment is a specially created environment, covering all aspects of using
cloud computing in organizing the training of students of all categories in different
forms and models of learning [19, p. 9]. The development of students’ IC-competencies
is offered on the basis of creating a synthetic Web-based educational environment to
enable students to use innovative learning tools, in particular in programming [27,
p. 143].</p>
      <p>Such applications such as Office 365 and G Suite facilitate student-teacher
collaborative work. Students’ teamwork is realized through the use of
Cloud-Webbased services: compilers, intelligence maps, automated knowledge testing systems for
programming. Knowledge level control has to be accomplished with tests.</p>
      <p>Important role in student activity organization is played by virtual classes (Skype,
Myownconference, Etutorium, Zoom, Cisco etc.). This model is as close to real-time
learning online as possible. We understand the virtual class as a special learning
environment in which learning takes place in real time, integrating Internet and
information-communication technologies and combining the common educational
goals and objectives for the student and the teacher [18, p. 6]. A student who is absent
for any reason can by virtual class means listen to the teacher’s lecture in real time and
participate in the discussion of the educational material.</p>
      <p>The use of the complex approach to Web-based education of bachelors will enable
students to use the learning mobility. It allows him to take an active part in the learning
process while being outside the higher education institution. For example, a student is
doing internship in another country, but has the opportunity to attend lectures by means
of the virtual class, use the services of the Cloud-Web-based technologies for learning,
use educational contents, accomplish home assignments as well as individual tasks,
communicate with the teacher etc. Academic mobility is based on an international
program which implies that a student of one higher education institution can study in a
different higher education institution abroad after concluding a contract.</p>
      <p>
        Society’s request for the development of virtual and augmented reality objects
require programmers to be able to use the advanced technologies, such as the Vuforia
platform, BeyondAR framework, Beyond Reality Face Nxt project, 3D tracking
technologies for image recognition, tracking and geolocation AR for mobile devices,
tablets and smart glasses etc. [
        <xref ref-type="bibr" rid="ref36">36</xref>
        ]
      </p>
      <p>Thus, within the scope of Web-based education organization approaches analysis a
survey was conducted among the students of the Technical University “Igor Sikorsky
Kyiv Polytechnic Institute” within the analysis of the Web-based education of future
bachelors of computer science in higher education institutions. 105 respondents took
part in the survey. It was conducted to determine the programming students’ attitude to
the organization of blended learning in their individual preparation to programming
disciplines.</p>
      <p>The survey results showed that 59 students (56.2%) know the basic principles of
Web-based education, and 46 students (43.85%) do not obtain all the necessary
information about it. It is worth noting that 79 students (84.8%) would like to practice
more of Web-based education, the basis of which is blended learning. In other words,
students study the educational material at home independently via electronic resources,
and after that to consolidate and practice the knowledge gained, in the form of a
discussion (or laboratory work), under the guidance of the teacher in the auditorium. A
total of 26 students (15.2%) adhere to the traditional approach to learning. The authors’
point is that the latter appear to have a lack of sufficient information on the forms,
methods and means of Web-based education.</p>
      <p>Nowadays such apps as MS Office 365, Google Doc, Google Sites, Hangouts,
Google Classroom are not implemented at a sufficiently high level at the departments
of the university. Therefore, out of 100 respondents, 43 students (43%) use Excel
Online, 42 students (42%) – Word Online, 34 students (34%) – Google site, 32 students
(32%) – PowerPoint Online, 28 students (28% ) – Forms Online, 16 students (16%) –
Google Classroom, 67 students (67%) Telegram, etc. (Fig. 2).</p>
      <p>The IT industry activity sphere increases each year, new programming languages
appear, new computer science methodologies and technologies are developed, and
project management is improved. This, in its turn, increases the amount of educational
information for a programming student to master. There is a large number of techniques
for processing information today. The use of Web-based intelligence cards appears to
be the most important. It is the application of intelligence card method itself that
becomes a new tool that provides structuring, systematization, specification and
effectively influences student’s memorizing information for further use [31, p. 132].
This method not only visualizes and organizes large volumes of educational
information, but becomes a motivator for further studying as well.</p>
      <p>According to respondents’ survey results, the use of Web-based and cloud-based
intelligence cards in the university departments is low: 11.8% of students apply them
in educational activities, and 88.8% do not pay sufficient attention to these services. A
similar survey among programming students was conducted in 2018, its results showed
that “in the educational process of programming languages teaching in higher education
institutions such web-based technologies as compilers, automated programming
verification systems, intelligent maps are not applied in the full capacity” [29, p. 84].
67
4
6
10
16
18
18
28
32
34
38
42
43
PowerPoint Online</p>
      <p>Word Online
Excel Online</p>
      <p>Telegram
Forms Online</p>
      <p>Google site</p>
      <p>Hangoust</p>
      <p>Gmail
Google Classroom
Google documents</p>
      <p>Google drive
Google keep
0
20
30
40
50
60
70
80
Fig. 2. Using of Applications in the course of Web-based Computer Science Bachelor’s
training.</p>
      <p>After comparing the results of 2018 and 2019 surveys, the authors conclude that the use
of Web-based intelligence cards within the independent study of teaching materials in
the discipline of programming grew by only 1.8%, which actually means it didn’t
change. The polling rate of respondents in the 2019 survey makes 11.8% [29, p. 84]
compared with 10% of the 2018 poll.</p>
      <p>Respondents’ survey results showed that future bachelors of computer science
should pay more attention to the use of Web-based and cloud-based automated testing
systems for programming tasks in preparation for practical lessons in the course of
programming. The statistics on the use of these systems is presented in Fig. 3 and it
demonstrates that out of 112 respondents, 78% do not use any of the systems presented
in the programming tutorials, 33% – use E-olymp, etc.</p>
      <p>One of the peculiarities in the learning process of future bachelors of computer
science is the point of studying several programming languages. Therefore, it is
important for comprehensive development in programming that students-programmers
get acquainted with different types of compilers, such as Web-targeting and cloud
compilers, starting from their first year of studying. This will enable them to program
from any location, at any time and thereby accelerate the process of programming
learning.</p>
      <p>33
78
E-olymp</p>
      <p>Use none
NetOI Jlimpiad</p>
      <p>Codeforce</p>
      <p>Codepad</p>
      <p>Asmp
Codekata
4
3
3
2
5
10
0
20
30
40
50
60
70
80
90
Fig. 3. Using of Web-based automated systems for testing programming tasks in the course of</p>
      <p>Web-based Computer Science Bachelor’s training.</p>
      <p>Figure 4 shows the rate on the use of Web-based compilers within the students’
independent work on practical programming tasks, namely: Codepad.org (3%),
Ideone.com (4.1%), Cppshell (9%), jsFiddle (2%), WandBox (20%), Tutorials Point
(4%), do not use any Web-based compiler (89%).</p>
      <p>Use of Web-based automated systems for testing programming tasks in the course
of Web-based Computer Science Bachelor’s training.</p>
      <p>Analyzing the results of NTUU “Kiev Polytechnic Institute Igor Sikorsky”
studentprogrammers survey the authors came to the conclusion that such innovative
technologies as Web-based and cloud-based applications are highly required for
students to master while learning. Therefore, it is advisable to include practical lessons,
laboratory work, project development, innovative software in the educational
curriculum.</p>
      <p>WandBox</p>
      <p>Ideone
Cppshell</p>
      <p>Use none
Tutorials Point</p>
      <p>Cppshell
Codepad
Another</p>
      <p>4
2
3
3
9
11
20
89
Fig. 4. Using Web-based Compilers in the course of Web-based Computer Science Bachelor’s
training.
4</p>
    </sec>
    <sec id="sec-4">
      <title>Conclusions</title>
      <p>After analyzing the experience of applying Web-based education approaches in
different countries, we conclude that both in Ukrainian universities and abroad –
various approaches to bachelor educating (and computer science bachelors in
particular) in higher education institutions are used quite actively. The difference lies
in national traditions as well as the approaches to the content of education itself.</p>
      <p>It is noted that Web-based education organization implementation is applied
internationally, in such well-known platforms as Coursera (USA), Prometheus
(Ukraine), international projects like Erasmus +, “Curriculum for Blended Learning”
and “Blended learning courses for teacher educators between Asia and Europe”.
However, it is not applied in the system of higher education institutions widely.</p>
      <p>The article considers approaches to Web-based education organization, in particular,
blended learning of future bachelors of computer science, such as flipped learning
approaches, A La Carte, individual rotation, which are popular among higher education
institutions in Europe, the USA, Asia and Russia. Meanwhile Moodle and flipped
learning have been widely used in Ukraine.</p>
      <p>While studying the Web-based learning organization approaches in the research of
foreign and domestic scientists, as well as analyzing the results of the
studentprogrammers survey, the authors emphasize that it is advisable to use the Web-based
programming teaching system for educating future bachelors of computer science,
which offers 20% of project training, 30% of traditional and 50% of distance learning.</p>
      <p>Some of the disadvantages of blended learning include the fact that teachers need to
devote a lot of time for preparing interesting and understandable teaching materials
(video lectures, methodological guidelines for carrying out practical work, etc.). It is
also very important for the strategy of Web-based learning to be supported by the
administration of higher education institutions.</p>
    </sec>
  </body>
  <back>
    <ref-list>
      <ref id="ref1">
        <mixed-citation>
          1. Blended learning:
          <volume>10</volume>
          <fpage>trends</fpage>
          - DreamBox Learning. http://www.dreambox.com/blog/blended-learning-10-trends (
          <year>2014</year>
          ).
          <source>Accessed 17 Aug 2015</source>
        </mixed-citation>
      </ref>
      <ref id="ref2">
        <mixed-citation>
          2.
          <string-name>
            <surname>Bondarenko</surname>
            ,
            <given-names>O.V.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Pakhomova</surname>
            ,
            <given-names>O.V.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Lewoniewski</surname>
            ,
            <given-names>W.:</given-names>
          </string-name>
          <article-title>The didactic potential of virtual information educational environment as a tool of geography students training</article-title>
          . In: Kiv,
          <string-name>
            <given-names>A.E.</given-names>
            ,
            <surname>Shyshkina</surname>
          </string-name>
          ,
          <string-name>
            <surname>M.P</surname>
          </string-name>
          . (eds.)
          <source>Proceedings of the 2nd International Workshop on Augmented Reality in Education (AREdu</source>
          <year>2019</year>
          ), Kryvyi Rih, Ukraine, March
          <volume>22</volume>
          ,
          <year>2019</year>
          .
          <source>CEUR Workshop Proceedings</source>
          <volume>2547</volume>
          ,
          <fpage>13</fpage>
          -
          <lpage>23</lpage>
          . http://ceur-ws.
          <source>org/</source>
          Vol-
          <volume>2547</volume>
          /paper01.pdf (
          <year>2020</year>
          ).
          <source>Accessed 10 Feb 2020</source>
        </mixed-citation>
      </ref>
      <ref id="ref3">
        <mixed-citation>
          3.
          <string-name>
            <surname>Bykov</surname>
            ,
            <given-names>V.</given-names>
          </string-name>
          <string-name>
            <surname>Yu</surname>
          </string-name>
          .:
          <article-title>Models of the open education organizational systems</article-title>
          . Atika,
          <string-name>
            <surname>Kyiv</surname>
          </string-name>
          (
          <year>2009</year>
          )
        </mixed-citation>
      </ref>
      <ref id="ref4">
        <mixed-citation>
          4.
          <string-name>
            <surname>Bykov</surname>
            ,
            <given-names>V.</given-names>
          </string-name>
          <string-name>
            <surname>Yu</surname>
          </string-name>
          .:
          <article-title>Proektnyi pidkhid i dystantsiine navchannia u profesiinii pidhotovtsi upravlinskykh kadriv (Project approach and distance learning in manager professional training)</article-title>
          . In: Sysoieva,
          <string-name>
            <given-names>S.O.</given-names>
            ,
            <surname>Romanovskyi</surname>
          </string-name>
          ,
          <string-name>
            <surname>O.H</surname>
          </string-name>
          . (eds.)
          <article-title>Krymski pedahohichni chytannia: materialy Mizhnarodnoi naukovoi konferentsii</article-title>
          ,
          <source>Spetember 12-17</source>
          ,
          <year>2001</year>
          , pp.
          <fpage>30</fpage>
          -
          <lpage>50</lpage>
          . NTU “KhPI”,
          <string-name>
            <surname>Kharkiv</surname>
          </string-name>
          (
          <year>2001</year>
          )
        </mixed-citation>
      </ref>
      <ref id="ref5">
        <mixed-citation>
          5.
          <string-name>
            <surname>Cherednichenko</surname>
            ,
            <given-names>H.A.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Shapran</surname>
            ,
            <given-names>L.Yu.</given-names>
          </string-name>
          :
          <article-title>Model zmishanoho navchannia i yii vykorystannia u vykladanni inozemnykh mov (The model of blended learning and its use in foreign language teaching)</article-title>
          . In:
          <article-title>Teoriia i praktyka vykorystannia systemy upravlinnia navchanniam Moodle, tretia mizhnarodna naukovo-praktychna konferentsiia</article-title>
          ,
          <fpage>21</fpage>
          -
          <lpage>22</lpage>
          May
          <year>2015</year>
          , p.
          <fpage>13</fpage>
          . KNUBA,
          <string-name>
            <surname>Kyiv</surname>
          </string-name>
          (
          <year>2015</year>
          )
        </mixed-citation>
      </ref>
      <ref id="ref6">
        <mixed-citation>
          6.
          <string-name>
            <given-names>Clayton</given-names>
            <surname>Christensen</surname>
          </string-name>
          <article-title>Institute: Blended Learning</article-title>
          . https://www.christenseninstitute.org/blended-learning/ (
          <year>2015</year>
          ).
          <source>Accessed 28 Nov 2019</source>
        </mixed-citation>
      </ref>
      <ref id="ref7">
        <mixed-citation>
          7.
          <string-name>
            <surname>Horn</surname>
            ,
            <given-names>M.B.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Staker</surname>
          </string-name>
          , H.:
          <article-title>Blended: Using Disruptive Innovation to Improve Schools</article-title>
          . JosseyBass, San Francisco (
          <year>2014</year>
          )
        </mixed-citation>
      </ref>
      <ref id="ref8">
        <mixed-citation>
          8.
          <string-name>
            <surname>Iatsyshyn</surname>
          </string-name>
          ,
          <string-name>
            <surname>Anna</surname>
            <given-names>V.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Kovach</surname>
            ,
            <given-names>V.O.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Romanenko</surname>
            ,
            <given-names>Ye.O.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Deinega</surname>
            ,
            <given-names>I.I.</given-names>
          </string-name>
          , Iatsyshyn, Andrii V.,
          <string-name>
            <surname>Popov</surname>
            ,
            <given-names>O.O.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Kutsan</surname>
            ,
            <given-names>Yu.G.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Artemchuk</surname>
            ,
            <given-names>V.O.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Burov</surname>
            ,
            <given-names>O.Yu.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Lytvynova</surname>
            ,
            <given-names>S.H.</given-names>
          </string-name>
          :
          <article-title>Application of augmented reality technologies for preparation of specialists of new technological era</article-title>
          . In: Kiv,
          <string-name>
            <given-names>A.E.</given-names>
            ,
            <surname>Shyshkina</surname>
          </string-name>
          ,
          <string-name>
            <surname>M.P</surname>
          </string-name>
          . (eds.)
          <source>Proceedings of the 2nd International Workshop on Augmented Reality in Education (AREdu</source>
          <year>2019</year>
          ), Kryvyi Rih, Ukraine, March
          <volume>22</volume>
          ,
          <year>2019</year>
          .
          <source>CEUR Workshop Proceedings</source>
          <volume>2547</volume>
          ,
          <fpage>181</fpage>
          -
          <lpage>200</lpage>
          . http://ceur-ws.org/Vol2547/paper14.pdf (
          <year>2020</year>
          ).
          <source>Accessed 10 Feb 2020</source>
        </mixed-citation>
      </ref>
      <ref id="ref9">
        <mixed-citation>
          9.
          <string-name>
            <surname>Kazhan</surname>
            ,
            <given-names>Yu.M.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Hamaniuk</surname>
            ,
            <given-names>V.A.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Amelina</surname>
            ,
            <given-names>S.M.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Tarasenko</surname>
            ,
            <given-names>R.O.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Tolmachev</surname>
          </string-name>
          , S.T.:
          <article-title>The use of mobile applications and Web 2.0 interactive tools for students' German-language lexical competence improvement</article-title>
          . In: Kiv,
          <string-name>
            <given-names>A.E.</given-names>
            ,
            <surname>Shyshkina</surname>
          </string-name>
          ,
          <string-name>
            <surname>M.P</surname>
          </string-name>
          . (eds.)
          <source>Proceedings of the 7th Workshop on Cloud Technologies in Education (CTE</source>
          <year>2019</year>
          ), Kryvyi Rih, Ukraine, December
          <volume>20</volume>
          ,
          <year>2019</year>
          , CEUR-WS.org,
          <source>online (</source>
          <year>2020</year>
          , in press)
        </mixed-citation>
      </ref>
      <ref id="ref10">
        <mixed-citation>
          10.
          <string-name>
            <surname>Korotun</surname>
            ,
            <given-names>O.V.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Vakaliuk</surname>
            ,
            <given-names>T.A.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Oleshko</surname>
            ,
            <given-names>V.A.</given-names>
          </string-name>
          :
          <article-title>Development of a web-based system of automatic content retrieval database</article-title>
          . In: Kiv,
          <string-name>
            <given-names>A.E.</given-names>
            ,
            <surname>Semerikov</surname>
          </string-name>
          ,
          <string-name>
            <given-names>S.O.</given-names>
            ,
            <surname>Soloviev</surname>
          </string-name>
          ,
          <string-name>
            <given-names>V.N.</given-names>
            ,
            <surname>Striuk</surname>
          </string-name>
          , A.M. (eds.)
          <source>Proceedings of the 2nd Student Workshop on Computer Science &amp; Software Engineering (CS&amp;SE@SW</source>
          <year>2019</year>
          ), Kryvyi Rih, Ukraine, November
          <volume>29</volume>
          ,
          <year>2019</year>
          .
          <source>CEUR Workshop Proceedings</source>
          <volume>2546</volume>
          ,
          <fpage>182</fpage>
          -
          <lpage>197</lpage>
          . http://ceur-ws.
          <source>org/</source>
          Vol-
          <volume>2546</volume>
          /paper13.pdf (
          <year>2019</year>
          ).
          <source>Accessed 10 Feb 2020</source>
        </mixed-citation>
      </ref>
      <ref id="ref11">
        <mixed-citation>
          11.
          <string-name>
            <surname>Korotun</surname>
            ,
            <given-names>O.V.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Vakaliuk</surname>
            ,
            <given-names>T.A.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Soloviev</surname>
            ,
            <given-names>V.N.</given-names>
          </string-name>
          :
          <article-title>Model of using cloud-based environment in training databases of future IT specialists</article-title>
          . In: Kiv,
          <string-name>
            <given-names>A.E.</given-names>
            ,
            <surname>Shyshkina</surname>
          </string-name>
          ,
          <string-name>
            <surname>M.P</surname>
          </string-name>
          . (eds.)
          <source>Proceedings of the 7th Workshop on Cloud Technologies in Education (CTE</source>
          <year>2019</year>
          ), Kryvyi Rih, Ukraine, December
          <volume>20</volume>
          ,
          <year>2019</year>
          , CEUR-WS.org,
          <source>online (</source>
          <year>2020</year>
          , in press)
        </mixed-citation>
      </ref>
      <ref id="ref12">
        <mixed-citation>
          12.
          <string-name>
            <surname>Kukharenko</surname>
          </string-name>
          , V.:
          <article-title>System approach to the blended learning</article-title>
          .
          <source>Information Technologies in Education 24</source>
          ,
          <fpage>53</fpage>
          -
          <lpage>67</lpage>
          (
          <year>2015</year>
          ). doi:
          <volume>10</volume>
          .14308/ite000550
        </mixed-citation>
      </ref>
      <ref id="ref13">
        <mixed-citation>
          13.
          <string-name>
            <surname>Kukharenko</surname>
            ,
            <given-names>V.M.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Berezenska</surname>
            ,
            <given-names>S.M.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Buhaichuk</surname>
            ,
            <given-names>K.L.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Oliinyk</surname>
            ,
            <given-names>N.Yu.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Oliinyk</surname>
            ,
            <given-names>T.O.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Rybalko</surname>
            ,
            <given-names>O.V.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Syrotenko</surname>
            ,
            <given-names>N.H.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Stoliarevska</surname>
            ,
            <given-names>A.L.</given-names>
          </string-name>
          :
          <article-title>Teoriia ta praktyka zmishanoho navchannia (Theory and practice of blended learning)</article-title>
          . Miskdruk,
          <string-name>
            <given-names>NTU KHPI</given-names>
            ,
            <surname>Kharkiv</surname>
          </string-name>
          (
          <year>2016</year>
          )
        </mixed-citation>
      </ref>
      <ref id="ref14">
        <mixed-citation>
          14.
          <string-name>
            <surname>Lavrentieva</surname>
            ,
            <given-names>O.O.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Arkhypov</surname>
            ,
            <given-names>I.O.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Kuchma</surname>
            ,
            <given-names>O.I.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Uchitel</surname>
            ,
            <given-names>A.D.</given-names>
          </string-name>
          :
          <article-title>Use of simulators together with virtual and augmented reality in the system of welders' vocational training: past, present, and future</article-title>
          . In: Kiv,
          <string-name>
            <given-names>A.E.</given-names>
            ,
            <surname>Shyshkina</surname>
          </string-name>
          ,
          <string-name>
            <surname>M.P</surname>
          </string-name>
          . (eds.)
          <source>Proceedings of the 2nd International Workshop on Augmented Reality in Education (AREdu</source>
          <year>2019</year>
          ), Kryvyi Rih, Ukraine, March
          <volume>22</volume>
          ,
          <year>2019</year>
          .
          <source>CEUR Workshop Proceedings</source>
          <volume>2547</volume>
          ,
          <fpage>201</fpage>
          -
          <lpage>216</lpage>
          . http://ceurws.org/Vol-
          <volume>2547</volume>
          /paper15.pdf (
          <year>2020</year>
          ).
          <source>Accessed 10 Feb 2020</source>
        </mixed-citation>
      </ref>
      <ref id="ref15">
        <mixed-citation>
          15.
          <string-name>
            <surname>Lisetskyi</surname>
            ,
            <given-names>K.A.</given-names>
          </string-name>
          :
          <article-title>Blended learning model in system of higher education</article-title>
          .
          <source>Advanced Education</source>
          <volume>4</volume>
          ,
          <fpage>32</fpage>
          -
          <lpage>35</lpage>
          (
          <year>2015</year>
          ). doi:
          <volume>10</volume>
          .20535/
          <fpage>2410</fpage>
          -
          <lpage>8286</lpage>
          .
          <fpage>51344</fpage>
        </mixed-citation>
      </ref>
      <ref id="ref16">
        <mixed-citation>
          16.
          <string-name>
            <surname>Litvinova</surname>
            ,
            <given-names>S.G.</given-names>
          </string-name>
          :
          <article-title>Tekhnolohyia «Perevernutoe obuchenye» v oblachno oryentyrovannoi uchebnoi srede kak komponent razvytyia medyaobrazovanyia v srednei shkole (Technology «Flip» training in the cloud-oriented education in educational environment as a component of development of media education in secondary schools)</article-title>
          . In:
          <article-title>Mediasfera i mediaobrazovanie: spetcifika vzaimodeistviia v sovremennom sotciokulturnom prostranstve</article-title>
          , pp.
          <fpage>233</fpage>
          -
          <lpage>247</lpage>
          . https://tinyurl.com/yd6pufy6 (
          <year>2015</year>
          ).
          <source>Accessed 28 Nov 2019</source>
        </mixed-citation>
      </ref>
      <ref id="ref17">
        <mixed-citation>
          17.
          <string-name>
            <surname>Lytvynova</surname>
            ,
            <given-names>S.G.</given-names>
          </string-name>
          :
          <article-title>Learning technologies for students in the cloud oriented learning environment of comprehensive educational institutions</article-title>
          .
          <source>Information Technologies and Learning Tools</source>
          <volume>47</volume>
          (
          <issue>3</issue>
          ),
          <fpage>49</fpage>
          -
          <lpage>66</lpage>
          (
          <year>2015</year>
          ). doi:
          <volume>10</volume>
          .33407/itlt.v47i3.
          <fpage>1239</fpage>
        </mixed-citation>
      </ref>
      <ref id="ref18">
        <mixed-citation>
          18.
          <string-name>
            <surname>Lytvynova</surname>
            ,
            <given-names>S.G.</given-names>
          </string-name>
          :
          <article-title>Virtual class for organization of pupils individual teaching</article-title>
          .
          <source>Information Technologies and Learning Tools</source>
          <volume>21</volume>
          (
          <issue>1</issue>
          ) (
          <year>2011</year>
          ). doi:
          <volume>10</volume>
          .33407/itlt.v21i1.
          <fpage>332</fpage>
        </mixed-citation>
      </ref>
      <ref id="ref19">
        <mixed-citation>
          19.
          <string-name>
            <surname>Lytvynova</surname>
            ,
            <given-names>S.H.</given-names>
          </string-name>
          :
          <article-title>Cloud-oriented learning environment of secondary school</article-title>
          . In: Semerikov,
          <string-name>
            <given-names>S.O.</given-names>
            ,
            <surname>Shyshkina</surname>
          </string-name>
          ,
          <string-name>
            <surname>M.P</surname>
          </string-name>
          . (eds.)
          <source>Proceedings of the 5th Workshop on Cloud Technologies in Education (CTE</source>
          <year>2017</year>
          ), Kryvyi Rih, Ukraine, April
          <volume>28</volume>
          ,
          <year>2017</year>
          . CEUR Workshop Proceedings 2168,
          <fpage>7</fpage>
          -
          <lpage>12</lpage>
          . http://ceur-ws.
          <source>org/</source>
          Vol-
          <volume>2168</volume>
          /paper2.pdf (
          <year>2018</year>
          ).
          <source>Accessed 21 Mar 2019</source>
        </mixed-citation>
      </ref>
      <ref id="ref20">
        <mixed-citation>
          20.
          <string-name>
            <surname>Markova</surname>
            ,
            <given-names>O.M.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Semerikov</surname>
            ,
            <given-names>S.O.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Striuk</surname>
            ,
            <given-names>A.M.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Shalatska</surname>
            ,
            <given-names>H.M.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Nechypurenko</surname>
            ,
            <given-names>P.P.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Tron</surname>
            ,
            <given-names>V.V.</given-names>
          </string-name>
          :
          <article-title>Implementation of cloud service models in training of future information technology specialists</article-title>
          . In: Kiv,
          <string-name>
            <given-names>A.E.</given-names>
            ,
            <surname>Soloviev</surname>
          </string-name>
          , V.N. (eds.)
          <source>Proceedings of the 6th Workshop on Cloud Technologies in Education (CTE</source>
          <year>2018</year>
          ), Kryvyi Rih, Ukraine, December
          <volume>21</volume>
          ,
          <year>2018</year>
          .
          <source>CEUR Workshop Proceedings</source>
          <volume>2433</volume>
          ,
          <fpage>499</fpage>
          -
          <lpage>515</lpage>
          . http://ceur-ws.org/Vol2433/paper34.pdf (
          <year>2019</year>
          ).
          <source>Accessed 10 Sep 2019</source>
        </mixed-citation>
      </ref>
      <ref id="ref21">
        <mixed-citation>
          21.
          <string-name>
            <surname>Mintii</surname>
            ,
            <given-names>I.S.:</given-names>
          </string-name>
          <article-title>Using Learning Content Management System Moodle in Kryvyi Rih State Pedagogical University educational process</article-title>
          . In: Kiv,
          <string-name>
            <given-names>A.E.</given-names>
            ,
            <surname>Shyshkina</surname>
          </string-name>
          ,
          <string-name>
            <surname>M.P</surname>
          </string-name>
          . (eds.)
          <source>Proceedings of the 7th Workshop on Cloud Technologies in Education (CTE</source>
          <year>2019</year>
          ), Kryvyi Rih, Ukraine, December
          <volume>20</volume>
          ,
          <year>2019</year>
          , CEUR-WS.org,
          <source>online (</source>
          <year>2020</year>
          , in press)
        </mixed-citation>
      </ref>
      <ref id="ref22">
        <mixed-citation>
          22.
          <string-name>
            <surname>Modlo</surname>
          </string-name>
          ,
          <string-name>
            <surname>Ye</surname>
          </string-name>
          .O.,
          <string-name>
            <surname>Semerikov</surname>
            ,
            <given-names>S.O.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Bondarevskyi</surname>
            ,
            <given-names>S.L.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Tolmachev</surname>
            ,
            <given-names>S.T.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Markova</surname>
            ,
            <given-names>O.M.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Nechypurenko</surname>
            ,
            <given-names>P.P.</given-names>
          </string-name>
          :
          <article-title>Methods of using mobile Internet devices in the formation of the general scientific component of bachelor in electromechanics competency in modeling of technical objects</article-title>
          . In: Kiv,
          <string-name>
            <given-names>A.E.</given-names>
            ,
            <surname>Shyshkina</surname>
          </string-name>
          ,
          <string-name>
            <surname>M.P</surname>
          </string-name>
          . (eds.)
          <source>Proceedings of the 2nd International Workshop on Augmented Reality in Education (AREdu</source>
          <year>2019</year>
          ), Kryvyi Rih, Ukraine, March
          <volume>22</volume>
          ,
          <year>2019</year>
          .
          <source>CEUR Workshop Proceedings</source>
          <volume>2547</volume>
          ,
          <fpage>217</fpage>
          -
          <lpage>240</lpage>
          . http://ceur-ws.org/Vol2547/paper16.pdf (
          <year>2020</year>
          ).
          <source>Accessed 10 Feb 2020</source>
        </mixed-citation>
      </ref>
      <ref id="ref23">
        <mixed-citation>
          23.
          <string-name>
            <surname>Modlo</surname>
          </string-name>
          ,
          <string-name>
            <surname>Ye</surname>
          </string-name>
          .O.,
          <string-name>
            <surname>Semerikov</surname>
            ,
            <given-names>S.O.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Nechypurenko</surname>
            ,
            <given-names>P.P.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Bondarevskyi</surname>
            ,
            <given-names>S.L.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Bondarevska</surname>
            ,
            <given-names>O.M.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Tolmachev</surname>
          </string-name>
          , S.T.:
          <article-title>The use of mobile Internet devices in the formation of ICT component of bachelors in electromechanics competency in modeling of technical objects</article-title>
          . In: Kiv,
          <string-name>
            <given-names>A.E.</given-names>
            ,
            <surname>Soloviev</surname>
          </string-name>
          , V.N. (eds.)
          <source>Proceedings of the 6th Workshop on Cloud Technologies in Education (CTE</source>
          <year>2018</year>
          ), Kryvyi Rih, Ukraine, December
          <volume>21</volume>
          ,
          <year>2018</year>
          .
          <source>CEUR Workshop Proceedings</source>
          <volume>2433</volume>
          ,
          <fpage>413</fpage>
          -
          <lpage>428</lpage>
          . http://ceur-ws.
          <source>org/</source>
          Vol-
          <volume>2433</volume>
          /paper28.pdf (
          <year>2019</year>
          ).
          <source>Accessed 10 Sep 2019</source>
        </mixed-citation>
      </ref>
      <ref id="ref24">
        <mixed-citation>
          24.
          <string-name>
            <surname>Nechypurenko</surname>
            ,
            <given-names>P.P.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Starova</surname>
            ,
            <given-names>T.V.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Selivanova</surname>
            ,
            <given-names>T.V.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Tomilina</surname>
            ,
            <given-names>A.O.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Uchitel</surname>
            ,
            <given-names>A.D.</given-names>
          </string-name>
          :
          <article-title>Use of Augmented Reality in Chemistry Education</article-title>
          . In: Kiv,
          <string-name>
            <given-names>A.E.</given-names>
            ,
            <surname>Soloviev</surname>
          </string-name>
          , V.N. (eds.)
          <source>Proceedings of the 1st International Workshop on Augmented Reality in Education (AREdu</source>
          <year>2018</year>
          ), Kryvyi Rih, Ukraine, October 2,
          <year>2018</year>
          .
          <source>CEUR Workshop Proceedings</source>
          <volume>2257</volume>
          ,
          <fpage>15</fpage>
          -
          <lpage>23</lpage>
          . http://ceur-ws.
          <source>org/</source>
          Vol-
          <volume>2257</volume>
          /paper02.pdf (
          <year>2018</year>
          ).
          <source>Accessed 30 Nov 2018</source>
        </mixed-citation>
      </ref>
      <ref id="ref25">
        <mixed-citation>
          25.
          <string-name>
            <surname>Nikitina</surname>
            ,
            <given-names>M.S.:</given-names>
          </string-name>
          <article-title>Model smeshannogo obucheniia v sisteme vysshego obrazovaniia (Mixed model of teaching in higher education). In: IV Mezhdunarodnaia studencheskaia nauchnaia konferentciia “Studencheskii nauchnyi forum - 2012”</article-title>
          . https://files.scienceforum.ru/pdf/2012/3075.pdf (
          <year>2012</year>
          )
        </mixed-citation>
      </ref>
      <ref id="ref26">
        <mixed-citation>
          26.
          <article-title>Osnovy prohramuvannia CS50 2019 (Programing basics СS50</article-title>
          <year>2019</year>
          ). https://courses.prometheus.org.ua/courses/course-v1:
          <article-title>Prometheus+CS50+2019_T1/about (</article-title>
          <year>2019</year>
          ).
          <source>Accessed 28 Nov 2019</source>
        </mixed-citation>
      </ref>
      <ref id="ref27">
        <mixed-citation>
          27.
          <string-name>
            <surname>Proskura</surname>
            ,
            <given-names>S.L.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Lytvynova</surname>
            ,
            <given-names>S.G.</given-names>
          </string-name>
          :
          <article-title>Formuvannia profesiinoi kompetentnosti maibutnikh bakalavriv kompiuternykh nauk (Future bachelors of computer sciences professional competency formation)</article-title>
          .
          <source>Physical and Mathematical Education</source>
          <volume>2</volume>
          (
          <issue>20</issue>
          ),
          <fpage>137</fpage>
          -
          <lpage>146</lpage>
          (
          <year>2019</year>
          ). doi:
          <volume>10</volume>
          .31110/
          <fpage>2413</fpage>
          -1571-2019-020-2-022
        </mixed-citation>
      </ref>
      <ref id="ref28">
        <mixed-citation>
          28.
          <string-name>
            <surname>Proskura</surname>
            ,
            <given-names>S.L.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Lytvynova</surname>
            ,
            <given-names>S.G.</given-names>
          </string-name>
          :
          <article-title>Organization of Independent Studying of Future Bachelors in Computer Science within Higher Education Institutions of Ukraine</article-title>
          .
          <source>CEUR Workshop Proceedings</source>
          <volume>2104</volume>
          ,
          <fpage>348</fpage>
          -
          <lpage>358</lpage>
          (
          <year>2018</year>
          )
        </mixed-citation>
      </ref>
      <ref id="ref29">
        <mixed-citation>
          29.
          <string-name>
            <surname>Proskura</surname>
            ,
            <given-names>S.L.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Lytvynova</surname>
            ,
            <given-names>S.H.</given-names>
          </string-name>
          :
          <article-title>Information technologies specialists training in higher education institutions of Ukraine: general state, problems and perspectives</article-title>
          .
          <source>Information Technologies in Education 35</source>
          ,
          <fpage>72</fpage>
          -
          <lpage>88</lpage>
          (
          <year>2018</year>
          ). doi:
          <volume>10</volume>
          .14308/ite000668
        </mixed-citation>
      </ref>
      <ref id="ref30">
        <mixed-citation>
          30.
          <string-name>
            <surname>Proskura</surname>
            ,
            <given-names>S.L.</given-names>
          </string-name>
          :
          <article-title>Model formuvannia profesiinoi kompetentnosti maibutnikh bakalavriv kompiuternykh nauk (The model of professional competency formation for future bachelors of computer sciences)</article-title>
          .
          <source>Physical and Mathematical Education</source>
          <volume>3</volume>
          (
          <issue>21</issue>
          ),
          <fpage>104</fpage>
          -
          <lpage>112</lpage>
          (
          <year>2019</year>
          ). doi:
          <volume>10</volume>
          .31110/
          <fpage>2413</fpage>
          -1571-2019-021-3-016
        </mixed-citation>
      </ref>
      <ref id="ref31">
        <mixed-citation>
          31.
          <string-name>
            <surname>Proskura</surname>
            ,
            <given-names>S.L.</given-names>
          </string-name>
          :
          <article-title>Zastosuvannia intelekt-kart dlia pidvyshchennia yakosti ta efektyvnosti navchannia studentiv kursu prohramuvannia vyshchykh navchalnykh zakladiv (Application intellect-cards for improving quality and efficiency of teaching students programming courses of higher education institutions)</article-title>
          .
          <source>Topical issues of natural and mathematical education</source>
          <volume>1</volume>
          (
          <issue>9</issue>
          ),
          <fpage>129</fpage>
          -
          <lpage>137</lpage>
          . http://fizmatsspu.sumy.ua/Konferencii/sbor/appmo/appmo_v7-
          <fpage>8</fpage>
          _
          <year>2016</year>
          .pdf#page=
          <volume>220</volume>
          (
          <year>2016</year>
          ).
          <source>Accessed 28 Nov 2019</source>
        </mixed-citation>
      </ref>
      <ref id="ref32">
        <mixed-citation>
          32.
          <string-name>
            <surname>Semerikov</surname>
            ,
            <given-names>S.O.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Teplytskyi</surname>
            ,
            <given-names>I.O.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Yechkalo</surname>
            ,
            <given-names>Yu.V.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Markova</surname>
            ,
            <given-names>O.M.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Soloviev</surname>
            ,
            <given-names>V.N.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Kiv</surname>
            ,
            <given-names>A.E.</given-names>
          </string-name>
          :
          <article-title>Computer Simulation of Neural Networks Using Spreadsheets: Dr. Anderson, Welcome Back</article-title>
          . In: Ermolayev,
          <string-name>
            <given-names>V.</given-names>
            ,
            <surname>Mallet</surname>
          </string-name>
          ,
          <string-name>
            <given-names>F.</given-names>
            ,
            <surname>Yakovyna</surname>
          </string-name>
          ,
          <string-name>
            <given-names>V.</given-names>
            ,
            <surname>Kharchenko</surname>
          </string-name>
          ,
          <string-name>
            <given-names>V.</given-names>
            ,
            <surname>Kobets</surname>
          </string-name>
          ,
          <string-name>
            <given-names>V.</given-names>
            ,
            <surname>Korniłowicz</surname>
          </string-name>
          ,
          <string-name>
            <given-names>A.</given-names>
            ,
            <surname>Kravtsov</surname>
          </string-name>
          ,
          <string-name>
            <given-names>H.</given-names>
            ,
            <surname>Nikitchenko</surname>
          </string-name>
          ,
          <string-name>
            <given-names>M.</given-names>
            ,
            <surname>Semerikov</surname>
          </string-name>
          ,
          <string-name>
            <given-names>S.</given-names>
            ,
            <surname>Spivakovsky</surname>
          </string-name>
          ,
          <string-name>
            <surname>A</surname>
          </string-name>
          . (eds.)
          <source>Proceedings of the 15th International Conference on ICT in Education, Research and Industrial Applications. Integration, Harmonization and Knowledge Transfer (ICTERI</source>
          ,
          <year>2019</year>
          ), Kherson, Ukraine, June 12-15
          <year>2019</year>
          , vol.
          <source>II: Workshops. CEUR Workshop Proceedings</source>
          <volume>2393</volume>
          ,
          <fpage>833</fpage>
          -
          <lpage>848</lpage>
          . http://ceur-ws.
          <source>org/</source>
          Vol-
          <volume>2393</volume>
          /paper_348.
          <string-name>
            <surname>pdf</surname>
          </string-name>
          (
          <year>2019</year>
          ).
          <source>Accessed 30 Jun 2019</source>
        </mixed-citation>
      </ref>
      <ref id="ref33">
        <mixed-citation>
          33.
          <string-name>
            <surname>Spirin</surname>
            ,
            <given-names>O.M.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Vakaliuk</surname>
            ,
            <given-names>T.A.</given-names>
          </string-name>
          :
          <article-title>Criteria of open web-operated technologies of teaching the fundamentals of programs of future teachers of informatics</article-title>
          .
          <source>Information Technologies and Learning Tools</source>
          <volume>60</volume>
          (
          <issue>4</issue>
          ),
          <fpage>275</fpage>
          -
          <lpage>287</lpage>
          (
          <year>2017</year>
          ). doi:
          <volume>10</volume>
          .33407/itlt.v60i4.
          <year>1815</year>
        </mixed-citation>
      </ref>
      <ref id="ref34">
        <mixed-citation>
          34.
          <string-name>
            <surname>Striuk</surname>
            ,
            <given-names>A.M.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Rassovytska</surname>
            ,
            <given-names>M.V.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Shokaliuk</surname>
            ,
            <given-names>S.V.</given-names>
          </string-name>
          :
          <article-title>Using Blippar Augmented Reality Browser in the Practical Training of Mechanical Engineers</article-title>
          . In: Ermolayev,
          <string-name>
            <given-names>V.</given-names>
            ,
            <surname>SuárezFigueroa</surname>
          </string-name>
          ,
          <string-name>
            <given-names>M.C.</given-names>
            ,
            <surname>Yakovyna</surname>
          </string-name>
          ,
          <string-name>
            <given-names>V.</given-names>
            ,
            <surname>Kharchenko</surname>
          </string-name>
          ,
          <string-name>
            <given-names>V.</given-names>
            ,
            <surname>Kobets</surname>
          </string-name>
          ,
          <string-name>
            <given-names>V.</given-names>
            ,
            <surname>Kravtsov</surname>
          </string-name>
          ,
          <string-name>
            <given-names>H.</given-names>
            ,
            <surname>Peschanenko</surname>
          </string-name>
          ,
          <string-name>
            <given-names>V.</given-names>
            ,
            <surname>Prytula</surname>
          </string-name>
          , Ya.,
          <string-name>
            <surname>Nikitchenko</surname>
            ,
            <given-names>M.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Spivakovsky</surname>
            <given-names>A</given-names>
          </string-name>
          . (eds.)
          <source>Proceedings of the 14th International Conference on ICT in Education, Research and Industrial Applications. Integration, Harmonization and Knowledge Transfer (ICTERI</source>
          ,
          <year>2018</year>
          ), Kyiv, Ukraine,
          <fpage>14</fpage>
          -
          <lpage>17</lpage>
          May
          <year>2018</year>
          , vol.
          <source>II: Workshops. CEUR Workshop Proceedings</source>
          <volume>2104</volume>
          ,
          <fpage>412</fpage>
          -
          <lpage>419</lpage>
          . http://ceur-ws.
          <source>org/</source>
          Vol-
          <volume>2104</volume>
          /paper_223.
          <string-name>
            <surname>pdf</surname>
          </string-name>
          (
          <year>2018</year>
          ).
          <source>Accessed 30 Nov 2018</source>
        </mixed-citation>
      </ref>
      <ref id="ref35">
        <mixed-citation>
          35.
          <string-name>
            <surname>Striuk</surname>
            ,
            <given-names>A.M.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Semerikov</surname>
            ,
            <given-names>S. O.</given-names>
          </string-name>
          :
          <article-title>Modeli kombinovanoho navchannia (Blended learning models)</article-title>
          .
          <source>Bulletin of the Alfred Nobel</source>
          Dnipropetrovsk University. Series “Pedagogy and Psychology”
          <volume>2</volume>
          (
          <issue>4</issue>
          ),
          <fpage>47</fpage>
          -
          <lpage>59</lpage>
          (
          <year>2012</year>
          )
        </mixed-citation>
      </ref>
      <ref id="ref36">
        <mixed-citation>
          36.
          <string-name>
            <surname>Syrovatskyi</surname>
            ,
            <given-names>O.V.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Semerikov</surname>
            ,
            <given-names>S.O.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Modlo</surname>
            ,
            <given-names>Ye.O.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Yechkalo</surname>
            ,
            <given-names>Yu.V.</given-names>
          </string-name>
          ,
          <string-name>
            <surname>Zelinska</surname>
            ,
            <given-names>S.O.</given-names>
          </string-name>
          :
          <article-title>Augmented reality software design for educational purposes</article-title>
          . In: Kiv,
          <string-name>
            <given-names>A.E.</given-names>
            ,
            <surname>Semerikov</surname>
          </string-name>
          ,
          <string-name>
            <given-names>S.O.</given-names>
            ,
            <surname>Soloviev</surname>
          </string-name>
          ,
          <string-name>
            <given-names>V.N.</given-names>
            ,
            <surname>Striuk</surname>
          </string-name>
          , A.M. (eds.)
          <source>Proceedings of the 1st Student Workshop on Computer Science &amp; Software Engineering (CS&amp;SE@SW</source>
          <year>2018</year>
          ), Kryvyi Rih, Ukraine, November
          <volume>30</volume>
          ,
          <year>2018</year>
          .
          <source>CEUR Workshop Proceedings</source>
          <volume>2292</volume>
          ,
          <fpage>193</fpage>
          -
          <lpage>225</lpage>
          . http://ceur-ws.org/Vol2292/paper20.pdf (
          <year>2018</year>
          ).
          <source>Accessed 21 Mar 2019</source>
        </mixed-citation>
      </ref>
      <ref id="ref37">
        <mixed-citation>
          37.
          <article-title>The Law of Ukraine “On education”</article-title>
          . http://zakon5.rada.gov.ua/laws/show/2145-
          <fpage>19</fpage>
          (
          <year>2017</year>
          ).
          <source>Accessed 28 Nov 2019</source>
        </mixed-citation>
      </ref>
      <ref id="ref38">
        <mixed-citation>
          38.
          <string-name>
            <surname>Tkachuk</surname>
          </string-name>
          , H.:
          <article-title>Foreign Experience In The Implementation Of Blended Learning</article-title>
          .
          <source>Physical and Mathematical Education</source>
          <volume>1</volume>
          (
          <issue>15</issue>
          ),
          <fpage>98</fpage>
          -
          <lpage>102</lpage>
          (
          <year>2018</year>
          ). doi:
          <volume>10</volume>
          .31110/
          <fpage>2413</fpage>
          -1571-2018-015-1- 016
        </mixed-citation>
      </ref>
      <ref id="ref39">
        <mixed-citation>
          39.
          <string-name>
            <surname>Tkachuk</surname>
          </string-name>
          , Ia.:
          <article-title>Novye standarty obrazovaniia v Ukraine: chto izmenit reforma (New education standards in Ukraine: what the reform will change)</article-title>
          . https://tinyurl.com/y7rzpf6u (
          <year>2017</year>
          ).
          <source>Accessed 28 Nov 2019</source>
        </mixed-citation>
      </ref>
      <ref id="ref40">
        <mixed-citation>
          40.
          <string-name>
            <surname>Tryus</surname>
          </string-name>
          ,
          <string-name>
            <surname>Yu</surname>
          </string-name>
          .V.,
          <string-name>
            <surname>Herasymenko</surname>
          </string-name>
          , І.V.:
          <article-title>The combined study as innovative educational technology in higher education</article-title>
          .
          <source>Theory and methods of e-learning 3(1)</source>
          ,
          <fpage>299</fpage>
          -
          <lpage>308</lpage>
          (
          <year>2012</year>
          )
        </mixed-citation>
      </ref>
    </ref-list>
  </back>
</article>