1BaoJ.A comparative study on composite difficulty between new and old Chinese mathematics text-books[].HowChinese learn mathematics:Perspectives from insiders.2004
2Cai J.Mathematical thinking involved in U.S.and Chinese students’solving process-constrained and process open problems[].Mathematical Thinking and Learning:An International Journal.2000
3Greer B.Modeling reality in mathematics class-rooms:The case of word problems[].Learning and Instruction.1997
4Verschaffel L,De Corte E,Borghart I.preservice teachers’conceptions and beliefs about the role of real-world knowledge in mathematical modelling ofschool word problems[].Learningand Instruction.1997
5Verschaffel L.Taking the modeling perspective seriously at the elementary school level:promises and pitfalls[].Proceedings of theth Annual Con ference of the International Group for the PsychologyofMathematics Education.2002
