实施课程改革以来,小学数学课堂发生了可喜的变化:四十分钟一节课由原来的老师“满堂灌”到现在精心设计的情境导入、小组合作、激励评价以及多媒体的运用等等,可谓是一节课下来,热热闹闹,教师和学生都在愉悦中度过。但随着课程改革的不断深入,我们有了更 Since the implementation of the curriculum reform, there have been some encouraging changes in the elementary mathematics classrooms: a 40-minute class led by the original teacher, the full-fledged classroom, well-designed situation introduction, teamwork, motivational evaluation and the use of multimedia, etc. It is a lesson down, bustling, both teachers and students are having fun. But with the deepening of the curriculum reform, we have more