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Tri-County Technical College

Tri-County Technical College offers you several ways to further your education and succeed, including offering supplemental instruction for some courses.

Supplemental Instruction (SI) provides non-remedial, regular review sessions outside of class led by students (SI leaders/mentors) who have already earned a high grade in the course and who have been trained in academic assistance.

SI leaders attend all class lectures, take notes, and act as models or mentors to other students currently taking the selected course. They help students in group sessions understand the material by giving additional examples, explaining difficult concepts, leading students in discussions of the material, and creating and providing supplemental handouts, such as study guides, practice problems and tests that students may not get otherwise. 

SI sessions are available on the Pendleton Campus and at Highpointe.

  • Fall Subjects: Biology 101 and 113, Chemistry 110; Math 109, 111, 120, 130, and 140
  • Spring Subjects: Biology 101, 102, 114; Chemistry 110, 111; Math 109, 111, 120 130, 140, 141, 240; and Physics 221

For more information, contact the Tutoring Center at or (864) 646-1367.