6Courts P L, McInerney K H. Assessment in Higher education: Politics ,Pedagogy ,and Portfolios [ M ]. Praeger Publishers lnc : Original from the Univer- sity of Michigan, 1993:33-38.
7Sutherland T E, Bonwell C C. Using active learning in college classes : A range of options for faculty[ M ]. Jossey-Bass : 1 edi- tion, San Francisco, CA, 1 996 : 67.
