What is Supplemental Instruction?

SI sessions are free, out-of-class review strategy sessions designed with you in mind. SI sessions are designed to get students working together to develop strategies to master course content, review material, and prepare for quizzes and tests. SI leaders help make sure you are on the right track and offer support and guidance.

SI sessions are currently available in several subjects.

Hear what others have to say about SI in this video.

How SI works

An SI leader, a student who has successfully completed the course in a previous semester, facilitates each session. You will see your SI leader in class taking notes, meeting with your professor, and participating in the lesson. This means your leader will be familiar with the course materials and lecture topics. In the SI session you will develop study strategies for note taking, organization, questioning techniques, vocabulary, and test preparation as you review course material with your classmates and the SI leader.


SI was developed by Deanna C. Martin at the University of Missouri-Kansas City in 1973 to help support students enrolled in difficult courses. SI offers regularly scheduled, out-of-class study sessions to all students enrolled in the course. The sessions are led by SI Leaders, students who have previously and successfully completed the course. All sessions are designed to get students working together to develop learning strategies and master course content while reviewing material and preparing for quizzes and tests.