Abstract: Teaching quality assessment is an important measure that colleges and universities take to improve teaching quality. A scientific and sound teaching quality assessment system will motivate teachers to improve teaching methods and perfect teaching means. The weight of the evaluating indicators in the system is analyzed from a rough set theory perspective. The purpose is to determine their respective significance, make a judgment as to if the current assessment system in Aba Teachers College is objective, and provide a decision-making basis for the improvement of it. In a simulation experiment, historical data concerning student evaluation of teaching is studied and analyzed by using the methods provided by the rough set theory. The experiment shows that the method is practical.

Key words: rough set, teaching quality evaluation, weight, decision-making