How teaching matters; bringing the classroom back into discussions of teacher quality
Wenglinsky, H.ERIC Document Reproduction Service No. ED 447 128 [2000]
Factors affecting earth science problem solving performances of elementary school pre-service teachers : A study on the motions of the moon and the planets
Myeong, J. O.The Journal of the Korean Earth Science Society 23 (2) : 180 ~ 187 [2002]
Educational psychology: Vol., 7 of the Comprehensive handbook of psychology