One key feature of the Institute’s ACT and SAT preparation courses is the custom coursepacks researched and written by the Institute’s instructors. The coursepacks cover all the information and strategies necessary for scoring in the highest percentiles on the ACT and SAT: they cover the subjects and knowledge tested, approaches to problem solving, and crucial insights into how the ACT and SAT writers generate their questions, their correct answers, and their incorrect answers. They also contain numerous sample questions and walkthroughs to help the student understand how to answer difficult problems. The coursepacks are designed to be used in conjunction with the Institute’s tutoring sessions.