289 MonitAR? Hayley Borck Adventium Labs, 111 Third Ave South Suite 100, Minneapolis, MN 55401 Abstract. In this video we present a novel application of Case-based Reasoning (CBR) that combines Intelligent Tutoring Systems (ITS) us- ing Augmented Reality (AR) and prediction. The MonitAR system is an intelligent guidance system for users conducting procedures during peri- ods when a human expert has limited or no availability to assist the user. Our approach takes advantage of the relational nature of time-series data to detect a task that the user is completing and diagnose the issue when the user is about to make a mistake. MonitAR uses AR cues to guide the user away from these potential mistakes. Using proven pedagogical models, MonitAR is able to effectively assist, train, or retrain users in domains ranging from astronauts to mechanics. Keywords: Intelligent Tutoring System, Task Prediction, Augmented Reality ? This video accompanies the paper: Borck, H., Johnston, S., Southern, M., and Boddy, M. (2016). Exploiting Time Series Data for Task Prediction and Diagnosis in an Intelligent Guidance System. In Proceedings of the Workshop on Reasoning about Time in CBR at the 24th International Conference on Case-based Reasoning. Copyright © 2017 for this paper by its authors. Copying permitted for private and academic purpose. In Proceedings of the ICCBR 2017 Workshops. Trondheim, Norway