I learned four required books 12345 when I was a freshman (which four books are different in different provinces), and there was one in the first semester of senior one (the same in arts and sciences).

In addition, there are optional courses 1- 1 and optional courses 1-2 in the liberal arts of senior two.

There are also elective courses 2- 1, 2-2, 2-3 in science in senior two.