6Anderson J R, Reder L M, Simon H A.Situated Learning and Education [ J ]. Educational Researcher, 1996,25 (4).
7Candy V.Self-direction for Lifelong Learning [ M ].California: Josey Bass,1991.
8Cohen E G.Restructuring the Classroom: Conditions for Productive Small Groups[J ].Review of Educational Research, 1994,64( 1 ).
9Hiebert J, Carpenter T P, Fennema E, Fuson K, Human P, Oliver A, Wearne D.Problem Solving as a Basis for Reform in Curriculum and Instruction:The Case of Mathematics[J] .Educational Researcher, 1996,25(4).