Cognitive Tutors have been successful in raising
students' math test scores in high school and middle-school classrooms, but
their development has traditionally required considerable time and expertise.
With the Cognitive Tutor Authoring Tools
(CTAT), creating Cognitive Tutors is both easier for experts and
possible for novices in cognitive science. The tools draw on ideas of
programming by demonstration, structured editing, and others.
The documentation for the Cognitive Tutor Authoring Tools has moved to a new location. All new documentation is now available in one place. Go to the new documentation and tutorials.
CTAT version 4.2.0 is available for download. CTAT 4.2.0 supports our new CTAT HTML Editor, which allows users to quickly build tutor interfaces. Changes include:
Read more in the release notes.
CTAT 4.1.0 is primarily a bug-fix release to address issues found in CTAT 4.0.0. Changes include:
Read more in the release notes.
CTAT 4.0.0 introduces support for HTML. Changes include:
Read more in the release notes.
Changes include:
Read more in the release notes.
CTAT 3.3.0 includes many new features and improvements. Changes include:
CTAT 3.2.1 is primarily a bug-fix release. Changes include:
We corrected an issue with our Flash components .ZXP file and have posted a new version of CommComponentsAS3.zxp. Please download and install this version using the Adobe Extension Manager if you are downloading CTAT for the first time and plan to use Flash for authoring student interfaces. For those who previously tried to install the Flash components for CTAT 3.2 in Adobe Extension Manager CC: this new version contains the same components you've already installed, but will not produce an error message in the Extension Manager. The error message can be safely ignored even though it appears that the components did not install successfully.
This release includes the following improvements:
This is an exciting release for CTAT, with many major improvements. Look for:
This is a major release for CTAT. It's the first release with ActionScript 3.0 versions of the Flash components (see {CTAT}/Flash/CommComponentsAS3.mxp).
In addition to the changes listed below as part of CTAT 2.12 Beta, the following features have been added (as well as many bug fixes):
After a long period offline, CTAT is now available again. This release includes the following changes:
Yes, CTAT is free for research purposes.
To significantly reduce the amount of time needed to create a tutor, and to lower the amount of artificial intelligence programming expertise needed.
Learning science researchers, online course developers, teachers, and students of cognitive science.
Besides CTAT, you will need either Firefox or Chrome and the Google Drive app or the Dropbox app. If you're interested in authoring production rules, you will need an editor such as Eclipse. All of the software is free.
You don't need any programming experience to create Example-tracing tutors; creating Cognitive tutors, however, requires familiarity with the Jess production rule language.
See a timeline showing the history of cognitive tutors and CTAT.
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All content © Copyright 2003–2015 Carnegie Mellon University. All Rights Reserved.
CTAT software may be used freely for research purposes only.