6DONALD R CRUICKSHANK, DEBORAH L BAINER. The Act of Teaching [M]. Quebecor: Printing Book Group pressed, 1999.
7ROWE M. Wait time and rewards as instructional variables, their influences in language, logic, and fate control: Part one-wait time [J]. Journal of Research in Science Teaching, 1974(2) : 81-94.
8MORINE DERSHIMER G, BEYERBACH B.Educators' handbook: A research perspective [M]. New York: Longman pressed, 1987: 208.
9WITFROCK M.The handbook of research on teaching [M]. New York: Macmillan pressed, 1986: 377.