As a former freshman who just walked out of the ocean of high numbers, let me answer this. There are many teachers' classes in Bali. At the end of the semester, I studied Mr. Shu's course. My uncle and aunt give lectures. I heard from menstruation that some real people have left the country. Moreover, my aunt's lectures were based on the ideas of textbooks, which were later expanded. The time of a class is not too long, just enough for us to finish a class with great interest.

Be sure to prepare a notebook, don't write everything down, don't understand it, there are some typical examples and extended examples, and do it again after class. After reading it all, you can do some after-school exercises or previous years' examination papers. If you find something you don't understand, turn over your notes, or listen to that part again, and add memory, you will fail the exam.