Figures & data
Chi-square test was used to analyze the student number of very satisfied and basically satisfied, χ2 = 0.0296, df = 1, P = 0.8633.
(A) The student number of preparing lessons. χ2 = 29.30, df = 3, P<0.0001. (B) The student number of answering questions (χ2 = 13.34, df = 1, P = 0.0003) and sharing notes (χ2 = 2.924, df = 1, P = 0.0873). (C) The student number of reviewing PPT after class. χ2 = 1.553, df = 1, P = 0.2127. (D) The student number of doing exercise book after class. χ2 = 1.356, df = 2, P = 0.5077.