Supplemental Instruction for Science Courses

Supplemental Instruction (SI) is also provided by the SRC for the following courses: BIOL 120, CHEM 115, CHEM 220.

SI sessions are structured, collaborative learning sessions facilitated by peer leaders that are offered multiple times a week to all students in a given course. They focus on “what to learn” (that week’s most difficult and most essential content) and “how to learn” (the skills and approaches to learning that yield the best results). You can view the weekly SI schedule using the links below.

SI schedules

BIOL 120 SI schedule

CHEM 115 & 116 SI schedule

CHEM 220 & 221 SI schedule

Course GPA by SI attendance

The data (shown below) that we have collected over the last several semesters show that students' SI session attendance is positively correlated with their course GPA (their grades for a given course) -- that is, on average, students tend to perform better in the course the more SI sessions they attend!

BIOL 120

Attendances 0 1-4 5-8 9-12
Course GPA 2.74 2.79 3.13 3.36

Data from Fall 2023 – Spring 2026

CHEM 115/116

Attendances 0 1-4 5-8 9-12 13+
Course GPA 2.70 2.72 2.88 3.09 3.16

Data from Fall 2024 – Spring 2026

MATH 110

Attendances 0 1-4 5-8 9-12 13+
Course GPA 1.95 1.87 2.35 3.28 3.33

Data from Spring 2025 – Fall 2025