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Supplemental Instruction

Certified Program by The International Center for Supplemental Instruction

The Supplemental Instruction program at CSULB seeks to increase student retention and success in historically difficult gateway courses by providing collaborative peer-learning experiences that improve understanding of subject content, foster critical thinking, and strengthen study skills.

About Our Services

Supplemental Instruction (SI) is a support service offered by the university in the form of a one-unit, credit/no-credit course. Each SI section is attached to a specific course ("target" course). SI Leaders attend lectures with the students and then lead two or three weekly sessions in which they facilitate a variety of hands-on learning activities to foster a deeper understanding of the course material. The purpose of SI is twofold: we want to help students master course content while also encouraging them to reflect on their evolution as a life-long learner - all with an eye toward helping students achieve their fullest potential at CSULB and in the future.


Enroll in a Supplemental Instruction Course

You can register for an SI section through MyCSULB.

In order to take an SI class, you must be enrolled in the course section that offers supplemental instruction. Look up the class for which you want assistance in the CSULB Schedule of Classes. The "COMMENT" section will state whether an SI course is available. If an SI class isn't an option, tutoring or an SI Group may be available.

Register for SI

Trouble Registering for SI?

Instead of searching for SI, try typing in the number for the SI directly into the box above the search option. If you are still experiencing problems, please contact TLC at

How much does SI cost?

If you’re a full-time student, SI is included in your registration fees. Out-of-state and international students must pay for the additional unit.

Want to become an SI Leader?

The Supplemental Instruction Program is no longer accepting applications for the Fall 2020 semester. Please check back to apply for Spring 2021 positions.


Supplemental Instruction FAQ