2Znaniecki F. The Social Role of the Man of Knowledge [M]. New York: Octagon Books, Inc, 1965.
3钱玄.礼记(下)[M].长沙:岳麓书社,2001.
4Michael N, Fried, Miriam, et al. A Spiral Task as a Model for In-service Teacher Education [J]. Journal of Mathematics Teacher Education, 2005, 8: 419-436.
