6Brown, A. , &Campione, J. Psychological theory and the design of innovative learning environments: On proce-dures, principles, and systems. In L. Schauble&R. Glaser (Eds.) Innovations in learning: New environments for education [ M ]. Mahwah, N J: Lawrence Erlbaum Associates, 1996.
7(美)R.基思·索耶.剑桥学习科学手册[M].徐晓东等译.北京:教育科学出版社,2010:67.
8Landis, J. , &Koch, G. The measurement of observer a- greement for categorical data [J]. Biometrics, 1977, 33: 159 - 174.
