Liberal arts students must learn: take 1- 1 and 1-2.

Science students are required to take 2- 1, 2-2 and 2-3.

Series 3 is a humanities course. Most schools don't study, and those who study only take 3- 1, the history of mathematics.

Elective 4 series has three books from the school, elective 4- 1, elective 4-4 and elective 4-5.