4Tappan M B.Socio-cultural Psychology and Caring Pedagogy:Exploring Vygotsky's "Hidden Curriculum"[J].Educational Psychologist,1998,33(1):23-33.
5Wink J,Purney L.A Vision of Vygotsky[M].Allyn and Bacon:A persom Education Company,2002.85-115.
6Valiner J,Vander R.The encoding of distance:the concept of the zone of proximal development and its interpretations[Z].In Lloyd P,Femyhough C,LEV Vygotsky Critical Assessment,London and NewYork:Routledge,1999.3-26.
7Brown D L,Ferrara R A.Diagnosing zones of proximal development[Z].In Lloyd P,Femyhough C,LEV Vygotsky Critical Assessment,London and NewYork:Routledge,1999.225-253.
