Supplemental Instruction is a series of weekly study sessions offered to students enrolled in historically difficult courses at UTSA. Attendance is voluntary and students are encouraged to attend as many sessions as they want. Students who attend SI sessions regularly tend to average one half to one full letter grade higher than their classmates who do not attend SI. As an SI Leader, I took the role of holding and administering these sessions to students. I attended class with them and worked alongside the professor to ensure students' success.