Intelligent Tutoring Systems

In June 2017, I made an intelligent tutoring system for learning English idioms, which will eventually be accessible online.  This work would not have been possible without the help of technician Jonathan Sewall and Dr. Vincent Aleven.

The process I used began with designing a tutor interface and an example problem (an idiom missing a word that the user inputs) using Cognitive Tutor Authoring Tools (CTAT) developed at CMU.  Then, I engaged participants to try out the example problem, and performed cognitive task analysis on them by observing their behavior and having them think aloud.  Next, I re-designed the tutor.  After that, I mass-produced problems with the same structure.  In the end, 20 English idioms needing fixing were produced.

In the future, I will work on the interface further, test it with people learning English, and link the tutor to DataShop, which enable it for collecting transaction data and further refinement.



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