CTAT version 2.11 is available for download. This release includes the following new features and Flash components:
To be held at Carnegie Mellon University, Pittsburgh, PA, USA July 25-29, 2011.
The application deadline is April 3, 2011. If you're interested in learning how to author tutors with CTAT, please consider applying.
CTAT version 2.10 is available for download. This release includes the following new features and Flash components:
CTAT version 2.9 is available for download. This release is primarily a bug-fix release, but also includes some new features for the authoring tools and Flash components.
ICLS 2010 Pre-conference Workshop
Tuesday, June 29, 9:00AM – 12:30PM
Intelligent tutoring systems guide learners as they practice a complex cognitive skill. They have been shown to enhance learning in a range of domains, and are increasingly being used as platforms for learning science experiments. This workshop provides a hands-on tutorial introduction to building tutors using the freely available Cognitive Tutor Authoring Tools (CTAT). Using CTAT, authors can create a new type of tutors, example-tracing tutors, without programming. No background in computer science is required.
Associate Professor of Human-Computer Interaction
Human-Computer Interaction Institute
Carnegie Mellon University
5000 Forbes Ave.
Pittsburgh, PA 15213
CTAT version 2.8 is available for download. This release includes many new features and bug fixes for the authoring tools and Flash components. Some highlights:
CTAT version 2.7.1 is available for download. This release fixes a critical bug in Flash client-side logging, and introduces more improvements to tab order and focus management for Flash components.
CTAT version 2.7 is available for download. This release includes many new features and bug fixes for the authoring tools and Flash components. Some highlights:
First-year HCII graduate student and CTAT user Martina Rau won the Best Student Paper Award at the 14th International Conference on Artificial Intelligence in Education, AIED 2009, which was held in Brighton, UK, July 6-10. Her paper, entitled "Intelligent tutoring systems with multiple representations and self-explanation prompts support learning of fractions", was co-authored with Vincent Aleven and Nikol Rummel, and features CTAT example-tracing tutors with Flash interfaces that the author created for each condition of the experiment:
We investigated the value of MGRs [multiple graphical representations] for fractions learning in the context of a proven intelligent tutoring system (ITS) technology, namely, Cognitive Tutors [19-21]. Specifically, we developed a set of example-tracing tutors for fractions learning, a type of tutors that are behaviorally similar to Cognitive Tutors, but that rely on examples of correct and incorrect solution paths rather than on a cognitive model underlying student behavior. We created these tutors with the Cognitive Tutor Authoring Tools (CTAT ).
CTAT version 2.6.1 is available for download. CTAT 2.6.1 is primarily a bug-fix release. CTAT will now vary step-out-of-order feedback messages based on whether or not the tutor is configured to highlight the correct step. Also included in the release is a new tutor template for NetBeans version 6.7 (the current NetBeans release).
CTAT version 2.6 is available for download. CTAT 2.6 includes many new features and bug fixes for the authoring tools and both Flash and Java widgets. Some highlights:
... and much more!
Scholarships are still available for the 5th Annual PSLC LearnLab Summer School to be held at Carnegie Mellon University, Pittsburgh, PA, USA.
From the Call for Applications: “We invite applications for participation in an intensive 1-week summer school on technology-enhanced learning experiments and building intelligent tutoring systems. The summer school will provide a conceptual background and considerable hands-on experience in developing, running and analyzing technology-enhanced learning experiments.”
Come build tutors with us!
CTAT version 2.5.1 is available for download. CTAT 2.5.1 is primarily a bug-fix release. Some significant changes are:
CTAT version 2.5 is available for download. In addition to bug fixes, new features include:
CTAT version 2.4 is available for download. New features include:
Please contact us if you'd like to download CTAT.
We are looking for a research programmer to help our lab in the development of web-based tutoring software. The candidate's duties will include the development of computer-based tutors, using the Cognitive Tutor Authoring Tools (CTAT), maintaining and extending the Flash-based tools within CTAT, and helping to create, maintain, and extend a website with CTAT-built tutors for middle-school math.
The PSLC Summer School is an intensive 1-week course on technology-enhanced learning experiments and building intelligent tutoring systems. The summer school will provide a conceptual background and considerable hands-on experience in developing, running and analyzing technology-enhanced learning experiments. This year's summer school will be held July 7-11, 2008 at Carnegie Mellon University in Pittsburgh, PA, USA.
In the Tutor Development track, CTAT project leads and staff will be present to help you develop an intelligent tutor with CTAT:
Participation is free. The application deadline is midnight April 2, 2008.
Read more about the PSLC Summer School and register online.
CTAT version 2.3 is available for download. New features include:
We've released an update to the Flash Logging Library, v2.3.8. This version contains support for logging media events related to video and audio. Download the Flash Logging Library, see the updated API documentation, or read about how to use the logging library in your Flash application.
We want to know what you think of CTAT. Have you used CTAT? Was it helpful? Usable? What could we do to make it better? Tell us on our survey. (It's anonymous and only 10 questions long.)
CTAT version 2.2 is available for download. New features include:
CTAT version 2.1 is available for download. New features include:
CTAT version 2.0 (beta) is available for download. New features include a more powerful Example-tracing algorithm; reorganized program menus; separation of tutor 'type' and 'authoring mode'; behavior graph visualization with JGraph; support for showing and hiding interface elements during tutoring; and the first release of the tutoring service, a new server-client architecture that further separates the tutoring engine from the student interface, allowing for fully functional light-weight tutors.
CTAT version 1.6.3 is available for download. CTAT 1.6.3 is a maintenance release that addresses bugs in CTAT 1.6.2. All users of CTAT 1.6.x are recommended to upgrade.
Next year's PSLC Summer School will be held June 18–22, 2007. We'll post a link to the 2007 application here when it becomes available. The likely application deadline is early to mid-February 2007.
CTAT version 1.6.2 is available for download. CTAT 1.6.2 is primarily a maintenance release that addresses a number of bugs in CTAT 1.6.1. All users of CTAT 1.6.x are recommended to upgrade to 1.6.2.
CTAT version 1.6.2 also includes two new features: a modified DorminComposer Java widget that allows a student to delete answers; and support for integrating CTAT Example-tracing Tutors in Carnegie Learning 2006 curricula units.
Over 30 participants attended this year's PSLC Summer School, a week-long course that focused on creating technology-enhanced courses and learning experiments, and on the tools used to design, implement, run, and analyze them. This November, PSLC organizers will announce the details of next year's summer school. We'll post the specifics here as they become available.
The CTAT Team will be offering a series of small workshops on authoring and delivering CTAT tutors. Our first workshop will be on Thursday, August 24th, 2-4PM (Newell-Simon Hall room 1109 at CMU). The title will be Is CTAT right for me? Understanding your options for building CTAT tutors in Java and Flash.
Please let us know if you'll be attending, and mention any questions you have or topics you'd like to explore—we'll do our best to answer them at the workshop. If they're beyond the scope of Thursday's workshop, we might plan a future workshop around them.
Update: Slides from the first workshop are available here.
CTAT version 1.6.1 is available for download.
CTAT version 1.6 is available for download. New features include Jess-Flash integration for creating cognitive tutors in Flash, better support for customizing tutor behavior, improved Jess performance, tutor-performed steps, new Flash components, and Simulated Student, a machine-learning agent that facilitates authoring of Cognitive Tutors.
An intensive, five-day course focused on creating technology-enhanced courses and learning experiments and on tools to support the design, implementation, running, and analysis of such experiments. The course is free, and will be held at Carnegie Mellon University, Pittsburgh, PA, USA, from Monday, July 31, 2006 to Friday, August 4, 2006. The application deadline has been extended to May 26. Notification of acceptance will be given by June 2. Update: Application deadline has passed. Thanks to all that applied.
Two recently accepted conference papers are now available from the CTAT publications page. The first, to appear in the proceedings of the 8th International Conference on Intelligent Tutoring Systems (ITS 2006), reports on the results of a small-scale study that examined efficiency gains in tutor development with CTAT. The second, to appear in the proceedings of the 6th IEEE International Conference on Advanced Learning Technologies (ICALT 2006), details a number of recent CTAT innovations through case studies. Both papers provide overviews of the current state of the CTAT project.
Explore two decades of research and development history on Cognitive Tutors. The timeline also provides audio clips and links to research papers.
CTAT 1.5.1 is an interim release that fixes two bugs for unordered groups and advanced student input matching.