提示多媒体教学系统对优化教学环境，提高教学质量，调动学生积极性和主动性有重要作用。
It indicated that MES played an important role on fining educational environment, improving educational quality, arousing the activity and initiative of students.
失败会挫伤学生的积极性。
老师们报告说，参加成长型思维课的学生中，有27%的学生的积极性发生了显著的变化，而对照组中只有9%的学生的积极性有所变化。
Teachers reported significant motivational changes in 27% of the children in the growth mind-set workshop as compared with only 9% of students in the control group.
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