In general, the ladder classroom is not a fixed classroom for individual classes, but a public classroom, so it can be used as a free self-study classroom in free time and can also be used flexibly by activity classes (such as class meetings). The amphitheatre has become a landscape of the university campus and a symbol of the liberal academic atmosphere of the university.
Modern lecture halls are mostly equipped with projectors, speakers and other multimedia combinations, which are generally used for open class teaching. There is no uniform regulation on the size of the amphitheatre, but each school decides when to build it. The small one can accommodate more than 100 people in 3-4 classes, and the large one can accommodate about 1000 people, which can be used as an auditorium and lecture hall.
Before the enrollment expansion, terraced classrooms were generally self-contained and built in specific places. With the expansion of university enrollment, many university classrooms have been changed into terraced classrooms, and terraced classrooms have begun to enter teaching buildings. Especially when several classes are in class together, everyone is often in a big classroom. The lecturer should be equipped with a wireless microphone, otherwise the whispering among students can't be suppressed during the lecture.