9Chee, Y. S. (1994). SMALLTALKER: A cognitive appren- ticeship muhimedia learning environment for learning Smalltalk program- ming[ A]. Proceedings of ED-MEDIA 94-World Conference on Educa- tional Multimedia and Hypermedia [ C ]. Vancouver, BC, Canada: 492-497.
10Collins, A. (2006). Cognitive apprenticeship [ A ]. R. K. Sawyer ( Ed. ). Cambridge handbook of the learning sciences [ C ]. Cam- bridge UK: Cambridge University Press:47450.