=Paper= {{Paper |id=Vol-3013/20210253 |storemode=property |title=Using Chatbots to Approach Individual Learning Trajectories in Physics for Foreign Students |pdfUrl=https://ceur-ws.org/Vol-3013/20210253.pdf |volume=Vol-3013 |authors=Iryna Bohomolova,Nataliya Kushnir,Sofiia Moshkovska |dblpUrl=https://dblp.org/rec/conf/icteri/BohomolovaKM21 }} ==Using Chatbots to Approach Individual Learning Trajectories in Physics for Foreign Students== https://ceur-ws.org/Vol-3013/20210253.pdf
Using Chatbots to Approach Individual Learning Trajectories in
Physics for Foreign Students
Iryna Bohomolova 1, Nataliya Kushnir 2 and Sofiia Moshkovska 2
1
    Kherson State Maritime Academy, Ushakova Street 20, 73000, Kherson, Ukraine
2
    Kherson State University, Universytets'ka Street 27, 73000, Kherson Ukraine


                Abstract
                This paper presents the chatbot as the way of learning individualization and individual work
                organization for high education applicants. Authors consider the methodology of teaching
                physics to foreign students in High Maritime Institution with national, psychological, linguistic
                and cognitive aspects examined. For the analysis to be done data from Kherson State Maritime
                Academy was used.
                Furthermore, functions and areas of usage in everyday life, professional and educational
                environments are defined in this paper. Likewise, a comparative analysis of platforms and their
                potential for the implementation of chatbots was held. Based on the Telegram platform, ‘Your
                Physics Trainer’ bot was created for implementation into the educational process of future
                sailors of Kherson State Maritime Academy.
                An experimental research was conducted to test the effectiveness of the chatbot application in
                the learning process delivering evidence of the expediency of its use.


                Keywords
                Learning technologies, interactive teaching tools for physics, training of sailors, chatbot,
                teaching methods of physics.

1. Introduction
 1.1. Formulation of the problem.
    Nowadays the world is noticed to be significantly constrained in all spheres of life by the COVID-
19 pandemic. Such strict limitations are sure to be noticed to be accommodated in social and educational
spheres. The educational environment is inclined to be switched to distance learning because of a great
need for lockdowns. Classes happen to be conducted online and digital technologies are sure to be
turning out to become a key player in the modern learning process.
    The digital technologies quantity in education is constantly increasing. The most well-known tools
used for conducting educational processes are considered to be Zoom, Google Meet, MicrosoftTeams,
Skype and BigBlueButton. These tools are noticed to be widely used by teachers for video calls, online
lessons and are said to be convenient for screen sharing. Such platforms as Google Classroom, Moodle,
iSpring, WebTutor, Teachbase turn out to be the most popular tools for placing educational content.
Indeed, these issues allow teachers to test and evaluate students` results providing the possibility to
publish and store all the educational material in one place.
    However, all the platforms mentioned above seem to have been used rather as a way to convey
already existing information, content and pedagogical methodologies. Unfortunately, their flaw is
vividly seen in inability to create individual feedback communication. As long as services like Moodle,
iSpring, etc. keep grading students` activity on the course`s page, they are highly likely to be motivated
    ___________________________________

ICTERI-2021, Vol I: Main Conference, PhD Symposium, Posters and Demonstrations, September 28 – October 2, 2021, Kherson, Ukraine
EMAIL: ivbogomolova70@gmail.com (A. 1); kushnir@ksu.ks.ua (A. 2); sophiemoshkovskaya@gmail.com (A. 3)
ORCID: 0000-0002-3259-497X (A. 1); 0000-0001-7934-5308 (A. 2); 0000-0002-5107-5753 (A. 3)
             ©️ 2021 Copyright for this paper by its authors.
             Use permitted under Creative Commons License Attribution 4.0 International (CC BY 4.0).
             CEUR Workshop Proceedings (CEUR-WS.org)
to be reading a lecture mostly for the sake of having a grade rather than for absorbing knowledge
purposes. Meanwhile, these services have a time limit for interactions in the same vein i.e. a duration
of the web-conference or limitation in tryings to interact with content.
    This paper embraces the questions of the possibility of a chatbot being used as a tool for providing
individual support in the educational process for students. The aim of this item is deemed to be to
interact with the student 24/7 in a Q&A format covering physics theory as delivering answers to typical
questions, to train students` typical problem solving skills and to act by the way of a cheating sheet
before tests.


 1.2. Analysis of recent research and publications.
    A possible use of chatbots in the educational process has always been an issue found to be appealing
to many authors during the last decade. Thus, this topic was thoroughly investigated and coped with in
works having been taken into consideration before completing this paper.
    O. Zahour, E. H. Benlahmar, A. Eddaoui, H. Ouchra and O. Hourrane [1] managed to have examined
the question of application of the bot algorithms and techniques of the Natural Language Processing
(NLP) for managing a students` educational system and professional orientation for graduate students.
    A. Kerly1, P. Hall and S. Bull [2] happened to have described an opportunity to use the Intelligent
Tutoring Systems for creating a dialog chatbot and to include it into the Open Learner Model to support
students while learning.
    P. A. Tamayo, A. Herrero, J. Martín, C. Navarro and J. M. Tránchez [3] chanced to have
implemented a chatbot as a virtual assistant for a distance learning of a subject of introduction to
Microeconomics organization.
    F. Colace, M. De Santo, M. Lombardi, F. Pascale, A. Pietrosanto,and S. Lemma [4] turned out to
have rendered a process of chatbot prototype development to the use of natural language processing
techniques being able to be used to support students while completing particular courses.
    J. Grossman, Z. Lin, H. Sheng, J. T.-Z. Wei, J. J. Williams and S. Goel [5] have been noticed to
have created a MathBot basing Intelligent Tutoring System applying it in mathematics delivering to
adults.
    L. K. Fryer, D. Coniam, R. Carpenter and D. Lăpușneanu [6] are said to have represented working
and learning with chatbot experience as having a substantive foreign language learning partner.
    P. Smutny and P. Schreiberova [7] are supposed to have been involved in inquiring and depicting
possibilities of Facebook Messenger to create an educational chanbot coupled with estimation of bots
already existing there and carrying out the classification of them by Language, by Subject, by Platform
matters with the aim to create a chatbot on it.
    I. M. Tsidylo, S. I. Samborskiy, S.-I. V. Mazur1 and M. P. Zamoroz [8] are noticed to have presented
a chatbot design in Telegram Messenger being possible to be applied in learning academic disciplines.

 1.3. Goal
    The goal of this paper embraces the carrying out of a comparative analysis of a platform being able
to be used for chatbot implementation and project purposes delivering experimental evidence of ‘Your
Physics Trainer’ chatbot application being beneficial in the process of teaching foreign students in High
Maritime Institutions.


2. Main body
 2.1. Chatbot roles
   Chatbots are biased to be referred to as widely used programs for sending automatic replies to users
on social media and websites. Furthermore, they are known for making the communication process
between clients and business simplified, gaining from Artificial Intelligent and/or Machine Learning
usages.
    Chatbots are known to succeed in dealing with CRM systems, leads, business requests, and e-
commerce in general. Hence, there is an enormous vastness of them starting from the easiest interactive
forms and ending with the most advanced ones with Artificial Intelligent being capable of a real-person
dialog imitation.
    In business and professional routine chatbots might seem possible to be used to accomplish next
tasks according to the survey held [9], [10]:
        ● E-commerce and business support;
        ● Automate routine work;
        ● Collecting personal information (emails, numbers, reviews).
    Nowadays, chatbots are becoming integral contributors to education for business employees and all
levels of education institutions i.e. from primary school to universities. For instance, this issue is highly
likely to be sufficient with a target to support students during studying as an e-tutor [4] for Open Learner
Modelling [2] and for managing learning systems and vocational guidance [1].
    It goes without saying that a widespread range of teaching aspects occurs to be existing allowing
educational chatbot to be successfully applied [11], [12]:
        ● Administrative support to teachers: chatbot takes off all administrative load of teachers, if
             trained well and answers natively to questions like ‘where, when, how, etc.’;
        ● Students’ engagement: students’ attention is drawn to being reminded to follow the
             deadlines or to participate in discussion;
        ● Teaching: using the Artificial Intelligent bots are noticed to be self-educated providing
             learners with answers, guides, pieces of advice according to the context imitating a real-
             person dialogue;
        ● Audio converters: chatbots might be capable of transforming the text into speech and vice
             versa;
        ● Feedback: through the course chatbots are being able to collect students` feedback as a result
             of various tests and turn to be likely to correct the mistakes with repetitive solving of typical
             problems;
        ● Anonymity: students are to feel free to ask any questions making fear of the personality
             being exposed disappear;
        ● Knowledge review: bot does not seem to cope with delivering answers to students as a way
             of teaching but to handle with problem solving and critical skills enhancement reviewing
             students` knowledge;
        ● Fostering critical thought: bots made on the Artificial Intelligent and Machine Learning
             basis are expected to act as a real tutor, to look for evidences of student's critical thinking
             skills in his/her answers and to foster it with mistakes correction and prompts;
        ● Universal teacher: unlike a human, a bot could be an absolute expert in several fields and
             play an administrative role likewise.

 2.2. Analysis of chatbot constructors
    It is worth mentioning that there is a great variety of services possible to be used for chatbot creation.
Most issues demand medium or proficient knowledge of programming although not many of them are
viable enough being of service.
    We would like to have services highly likely to be applied investigated. The best option to start with
is chatbot constructors – special services that are used for chatbot creation on a messenger basis without
any programming skills applied. They are easy to operate with the user being whole way guided with
simple and clear instructions. Moreover, there is the only need to create such attributes as bot name, bot
id, bot commands and answers.
    The most popular platforms among the users are Facebook, Telegram, Viber, Instagram and
WhatsApp. Many chatbots are said to be using these platforms, including educational ones. For
example, 47 educational bots have already existed on the Facebook base. They are used for learning
languages and economy-related topics [7].
   To determine a platform for chatbot development a social survey was managed to be held among
the target audience - Kherson State Maritime Academy cadets. The participants of the survey were
asked to look through the list of the most popular social networks and messengers and answer two
questions: “What social networks/messengers do you use?” and “What messenger do you prefer for
studying/working purposes?”. Therefore, according to the survey results, Telegram, Facebook, Viber,
Instagram, and WhatsApp appeared to be the most well-liked messengers among cadets. For the
representation of cadets` preferences among the most popular messengers, please, check Figure 1.




Figure 1: The results of cadets survey

   It is worth mentioning that chatbots constructors known to be used for simple bot creation failed to
have Artificial Intelligent and/or Machine Learning. On the one hand, such a constructor could be
accessed by the user of any level without any specific software or application being installed. On the
other hand, the creation of a complex multi-tasking bot or a bot with technologies of Artificial
Intelligent/Machine Learning is impossible to be done with these services [8].
   Table 1 shows a comparative analysis of the constructors highly likely to be used for creating a
chatbot.
   As illustrated on Table 1, we have chosen six constructors to be examined: BotMother, BotFather,
SendPulse, Flow XO, ManyChat and Chatfuel. As it can be seen on the table, constructors have an
opportunity to collaborate with Facebook, Telegram and other platforms. The key features of chosen
constructor are noticed to be mobile version availability, option to schedule messages and option of
gallery attached to a message.
   According to having been compared services possible to support several messengers it is to be noted
that a social survey held has proved Telegram to be the leading platform for chatbot (results are given
above, please, check Figure 1).
   Analysing a comparison on Table 1 it can be vividly seen that BotFather possesses all the features
needed to become the tool we have used.
Table 1 Comparison of chatbot constructors




                              BotMother




                                                                                         ManyChat




                                                                                                       Chatfuel
                                                            SendPulse
                                             BotFather




                                                                           Flow XO
       Criteria



 Free platform            Base plan           +              +          Free trial   Free trial     Base plan

 Limit in users                 -              -              -              -            -            +
 Option of creating
                         One file in a
 predefined answers       message
                                             +               +              +            +             +
 using photo/video
 Option of sending
 messages to                   +              +              +              +            +             +
 subscribers
 Supported
 scheduled                     +              +               -              -            -             -
 messages
 Collecting users`
                               +              +               -             +            +             +
 answers
 Mobile version                 -             +               -              -            -             -
                          Facebook,                                     Facebook,
 Supported
                          Telegram,       Telegram       Facebook       Telegram,    Facebook       Facebook
 platforms                   etc.                                          etc.
                           Russian,
 Interface language        English
                                          Russian        English         English     English        English
                                                                                        In
 Option to handle a           In
                                            +               +               +        subscrip-         +
 few bots                subscription
                                                                                       tion



 2.3. Tutoring chatbots in education and business
    Having thoroughly analysed educational chatbots` roles and presence on the market it was concluded
that there is a distinct lack in a chatbots` variety. There is a strong presence of linguistic (for language
learning) [6], [2], business and economy focused ones [3] rather than equal representation of bots for
different needs. Bots that are likely to be used for fundamental natural science educational purposes
have been poorly represented.
    However, there are few examples of educational bots found that do not seem reasonable to be
eliminated in this paper.
    Firstly, ‘PhysicsBot’ claims to be an educational tool rather than to be what it is – a calculator with
a step-by-step solution shown. It can be successfully applied to the learning process as well as for
cheating issues instead of being a usual engineering calculator. Moreover, this application is possible
to be downloaded only from Play Market which cuts off almost a half of the target audience.
    Secondly, MathBot created at Stanford University [5] seems to be a shining example of technologies
used for education. The main challenge being faced was to create a text-based tutor that explains math
concepts and guides students through problem solving. This bot continually checks users`
understanding with questions, splits problems into subproblems when an incorrect answer is received
and provides personalized feedback. It is possible to be carried out due to bot`s specific conversation
graph that is a detailed set of if-then rules.
   To sum up written above, finding freely available physics chatbots with a required simplicity and
possibility to achieve educational goals have turned out to be a challenging and demanding task, but
not impossible one. Taking into consideration all these peculiarities, the decision to create an
educational physics chatbot was taken.

 2.4. Essential aspects of teaching physics to foreign students
    Physics is a fundamental course that deals with the preparation of applicants for high maritime
education (AHME) to solve professional problems related to ship theory and design, navigation and
ship management as well as ship equipment operation. Physics theory profitably contributes to
professional competencies of future officers.
    Specification of minimum standard of competence for seafarers is able to be easily tracked in
International Convention on Standards of Training, Certification and Watchkeeping for Seafarers
(STCW) [13]. Based on it, model courses were developed by the International Maritime organization
(IMO) to train future seafarers with significant professionalism possessed [14].
    Physics course in High Maritime Institution is being taught according to the syllabuses compiled
with aspects of further professional activities taken into consideration. This course covers chapters that
are necessary to acquire in-depth knowledge for qualifications described in Tables A-II, A-III and A-
IV of the International Convention on STCW and STCW Code. These Tables regulate the following
competences at the operation and management level: knowledge, understanding and proficiency,
methods for demonstrating competence, criteria for evaluating competence.
    Hence, the physics course` training material has to be standing together with the knowledge of
professional disciplines and to be developing professional problem solving. Teaching with such an
approach to the course structure is sure to be leading to the formation of direct logical links between
disciplines which provides an opportunity to use the educational material unlocking the potential to its
full degree while forming professional competencies of future seafarers.
    Furthermore, the competency «Ship manoeuvring and handling» is highly likely to be taken as an
helpful example to be considered. The achieving of given competency demands the following set of
material to be known: the effects of deadweight, draught, trim, speed and under-keel clearance on
turning circles and stopping distances; the effects of wind and current on ship handling; squat, shallow-
water and similar effects [13]. In addition, this in turn implies an in-depth understanding of certain
physical phenomena such as relative motion and relative velocity, Pascal’s principle, Archimedes
principle, equation of continuity, Bernoulli’s equation, rotational motion of solid body, uniform circular
motion of particle, forces and their characteristics, magnetic field and its influence on the measuring
equipment, course pointers etc.
    This very knowledge acquisition seems accomplishable enough while having the course of physics
being immediately used to solve applied problems as an example of its widespread usage in a
professional environment.
    However, taking into account the foreign students contingent`s features it was decided to
individualize the learning process with ‘Your Physics Trainer’ bot.

 2.5. Contingent
   Foreign students from 19 countries are known to be studying at Kherson State Maritime Academy.
That is why the educational process for foreigners is carried out in English language. The contingent of
foreign Physics learners in 2020-2021 as a percentage is shown on the following Figure 2. As it can be
seen, for the majority of foreign students English is not a native language. However, the Physics course,
as a fundamental one, demands all students to be familiar with definitions, laws and their applications
especially in a professional environment. Hence, a great language barrier between students and teacher
from one side and student and physics from another one similarly appears to be the first peculiarity of
foreign students` teaching.
    Besides, the miscellaneous level of students` basic knowledge in Physics is the second peculiarity
to be mentioned. The students` age range between 20 and 33 years old. Due to this fact future seafarers
are supposed to have graduated from school previous year, the year before last and up to 10 years ago.
In addition, some of them already have completed a bachelor degree rather than in Economics or
Humanities. The teacher is faced with a mission to not only refresh or deliver knowledge and skills of
Basic Physics but to complete the Marine Physics course.
    Last but not least, difficulties in social and academic adaptation are to be kept in mind. Future
seafarers` educational process is organized according to KSMA statute which claims obligatory muster
calls (in the morning and after classes), strict schedule of lessons, simulators and watch as a necessity.
However, such an agenda might seem to confront with national and religious traditions of foreign
students.

                                                                        Egypt
                                      3% 3%1%                           Lebanon
                                 3%
                               3%                                       Nigeria
                             3%
                                                                        India
                           3%
                          3%                                            Guinea
                                                        44%
                                                                        Tunisia
                         6%
                                                                        Syria
                                                                        Palestine
                           11%                                          Côte d'Ivoire
                                                                        Azerbaijan
                                        17%                             Moldova
                                                                        Russia

Figure 2: Contingent of foreign students

   Summing up, teaching Physics requires an individual approach to work as well as a must-to be-done
students’ self-study. This problem partly may be solved with ‘Your Physics Trainer’ chatbot.

 2.6. Chatbot usage sample
    Chatbot ‘Your Physics Trainer’ is created on the Telegram basic using a special constructor (please,
check Figure 3 and Table 1) without any AI and ML technologies applied. It`s frontend is a Telegram
chat window between bot and a student.
    At the beginning the bot shows a starting message to students explaining the way it works and giving
short instructions (see Figure 3a). When pushed a button, bot is queried for the material, navigating
through its content. All bot`s answers are uploaded beforehand by admins and organised in its structure
as a tree.
    Students are proposed to navigate through chapters being provided with mini lessons (consisting of
images, text, GIFs and videos) as well as being asked to solve problems and to type in answers. A ‘Go
Back’ button solves a problem of switching between parent and child nodes making bot interface and
structure look user-friendly. Students can scroll through conversation history to review some essential
concepts or other material. To encourage students' learning, bot presents answers in a friendly tone.
Different emojis are used to emphasize chapters (        and    ), topics ( ), problems and tests (❓ and
    ).
    Moreover, a detailed statistic is given to the bot`s administrators. They can see who (username) and
when (date and time) uploaded or chose an answer (files, text, tests). When necessary, the bot can send
messages either immediately or scheduled.
    So, ‘Your Physics Trainer’ is examined in greater detail using the ‘Oscillations and waves’ chapter
as an example. The educational material consists of two topics – oscillatory motion and waves - and
covers the following aspects: periodic motion, simple harmonic motion, mass on a spring, simple
gravity pendulum, period of oscillation, compound pendulum, and waves, longitudinal wave, transverse
wave and doppler effect respectfully.
    To obtain such competencies as ‘Monitor the loading, stowage, securing, care during the voyage and
the unloading of cargoes’ students are required to possess a deep knowledge of these materials. It
includes rolling of ships, approximate GM (metacentric height) by means of rolling test and inclining
test. The obtaining of ‘Manoeuvre and handling a ship in all conditions’ competency requires knowing
of rolling and pitching of the ship, importance of navigating at reduced speed to avoid damage caused
by its own ship's bow wave and stern wave.




                    (a) Start screen                               (b) Conversation with bot

Figure 3: Example of start screen and sample conversation with ‘Your Physics Trainer’ bot

   So, in order to save time at the lesson students are sent a message asking them to pre-learn or review
information and characteristics of oscillatory motion and waves before the lesson (in a day or two).
Such preparation for the lesson tends to be used for redirection of saved time to more complicated
topics. For instance, let us consider waves adding and their interference. The attention is to be drawn
that its influence on the moving ship succeeds in being taught on the examples of wave making
resistance of ships, the basic wave pattern generated by a moving surface vessel and the interference
between the transverse bow and stern wave systems.

3. Experiment organisation and results
   Two groups of students of 30 in each have participated in the study. The study process of the first
group (control) was held according to usual methodology i.e. all classes were scheduled and students
had access to the Physics course resources on Moodle (Learning Management System). The second
group of participants (experimental) has been studied using the same methodology, except they were
asked to interact with ‘Your Physics Trainer’ bot. Both groups of students were assigned to be
proceeding the ‘Oscillations and waves’ topic.
    The control group of students is said to have been explained the material only during classes. When
necessary, the teacher clarifies basic terms or concepts, if students are unable to remember them. All
students have access to the educational content of the Physics course on Moodle platform by Iryna
Bohomolova. The second group learning trajectory was built with the great role of the ‘Your Physics
Trainer’ bot as an educational source.
    The chatbot contains basic content about oscillations and waves, to be directly short theory
paragraphs, definitions, examples of solving elementary problems data. The teacher beforehand sends
a message to students (in bot) notifying them to learn or refresh a particular topic. In the class the basic
material explanation tended to be skipped and only a control quiz (from 5 to 10 minutes) appeared to
be done. Thereafter, students learn the material described in the syllabus using examples related to their
future professional activity. In addition, the bot can send a reminder with a home task. Participant’s
answer is allowed to be uploaded to chatbot and feedback is available to be received before the next
lesson.
    After the study participants of both groups were supposed to deal with the final test. The results
proved that knowledge quality in the experimental group was higher than in the control one which is
illustrated on the Figure 4.

              10
               9
               8
               7
               6
               5
               4
               3
               2
               1
               0
                      < 60         60-63        64-73       74-81        82-89       90-100
                     Number of control group students   Number of experimental group students



Figure 4: Representation of knowledge quality after the Study

    After the study students were faced the task to compare an educational process with and without the
chatbot. The survey indicated that a significant fraction of participants considered chatbot and its
notifications before the class to be useful and motivating one. Besides, students revealed that quick
feedback from the tutor gives a helping hand in overcoming stress as they come to the lesson halfway
familiar with the material. Overall, chatbot usage experience is to be definitely going on. For the results
of the survey, please, check Figure 5.
Figure 5: Cadets review of their work experience with chatbot

4. Conclusions and directions for further research
    While completing this paper, a comparative analysis of platforms and services available to be used
for chatbot development was managed to be held, delivering clear evidence that BotFather is considered
to be the most appropriate and requirements-meeting tool becoming a base of ‘Your Physics Trainer’
bot. A key conclusion of our study to come up is that ‘Your Physics Trainer’ bot is sure to be
contributing to noticeable improvements in knowledge quality as illustrated on Figure 4.
    The chatbot is reasonable to be used as an essential component of the educational process for self
and distance studying. Therefore, a high-quality communication between the teacher and the students
seems available to be effectively organized by this chatbot to reduce fear of making mistakes and,
hence, to increase the motivation and self-esteem of the student. Besides, not only can foreign cadets
benefit using the created bot but any non-native English speaking cadets are able to use it for
memorising the basic Physics definitions, laws and theory in English being favourable enough as it is
the language of cadets` further professional environment.
    Thus, the creation of this chatbot is certainly to be evaluated as a reasonable one. Further study is
required to create a chatbot with AI technologies used.

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