Abstract: This paper builts the stock and flow diagrams about every element of impacting on teaching result with the change of teacher quantity on the basis of system dynamics, establishes the prediction model about teaching result in college, and simulates with Vensim PLE 5.9 to solve the bad influence on the teaching experience and teaching result when the teacher quantity has changed in a college. The simulation test shows that the model can make prediction on the teaching result trend and provide theoretical evidence for making plan of hiring and firing teachers with consideration of teaching result.

Key words: teacher quantity, teaching result, system dynamic, prediction, model