AI to assist students
Chatbot Iris offers individual support
A packed auditorium with over 1000 students. This is not a rare sight in introductory informatics lectures. To meet the needs of each individual student under these conditions, Stephan Krusche, Professor of Software Engineering, and his team have been building the Artemis learning platform since 2016. It resembles well-known learning platforms, but offers more possibilities. For example, students not only receive their assignments through the platform, but also get immediate feedback when they make mistakes or show an incomplete understanding of concepts.
Chatbot Iris: excellent tutor
In October of last year, Stephan Krusche’s team at the TUM Centre for Educational Technologies added the chatbot to the platform. Iris is based on the GPT large language model of OpenAI. It is intended to help students with assigned problems, with the support geared to their individual needs. To adapt the system to the learning context, the chatbot operates as a so-called excellent tutor. That means that, rather than immediately suggesting the right solution or specific steps, Iris offers subtle hints or asks leading questions. This approach encourages students to think for themselves. To boost learning efficiency, the chatbot only answers questions directly relevant to the learning content.
“To test the success of Iris, we surveyed over 200 students from three introductory informatics lectures,” says Patrick Bassner, a doctoral candidate at the Professorship of Software Engineering. “The goal was to arrive at conclusions on how students rate the effectiveness of the support from Iris, whether students are more comfortable asking a chatbot questions than a human tutor and whether students subjectively trust Iris.”
Iris promotes learning and students’ independence
The responses show that the students value Iris as a valuable support, but also that a large share of those surveyed still rely on human tutors. The chatbot understands questions well and students feel comfortable and safe when using it. Iris gives them the feeling that the chats will remain private and that they are not being judged when asking questions. Especially in large lectures, this saves students from having to overcome their inhibitions to ask questions in front of the class. When studying for exams, the use of Iris is becoming commonplace. However, students feel confident enough to solve problems on exams without the support of the chatbot.
“The integration of Iris into Artemis has shown that AI-controlled tutors can play a valuable role in university teaching,” says Stephan Krusche. “They offer personalized support that benefits learning and boosts students’ ability to help themselves.”
The researchers plan to further optimize the chatbot Iris and want to see it being used in other subject areas.
Patrick Bassner, Eduard Frankford, and Stephan Krusche. 2024. Iris: An AI-Driven Virtual Tutor for Computer Science Education. In Proceedings of the 2024 on Innovation and Technology in Computer Science Education V. 1 (ITiCSE 2024). Association for Computing Machinery, New York, NY, USA, 394–400.
- Artemis learning platform
- At the TUM Center for Educational Technologies, interdisciplinary research teams investigate the effectiveness of digital tools for learning and teaching and develop new applications. The centre also puts these into practice through further training
- To learn more about Prof. Stephan Krusche, see the new issue of the magazine „Mindshift“ (in German).
Technical University of Munich
Corporate Communications Center
- Julia Rinner
- presse@tum.de
- Teamwebsite
Contacts to this article:
Prof Dr. Stephan Krusche
Technical University of Munich
Professorship of Software Engineering
krusche@tum.de
