在数学活动之前一定要留给学生独立思考的时间,使学生利用自己已有的知识、能力、经验分析问题,寻找解决方法,然后再进行操作活动,我想这样的活动更有目的性,更有效;操作前适时适度的示范是非常必要的;在一个阶段里每人都应有相对侧重的一项责任,担任一个具体的合作角色。 Before the mathematics activities must be left to students independent thinking time, so that students can use their existing knowledge, ability, experience to analyze problems, find solutions, and then conduct operational activities, I think such activities more purposeful and more Effective; modest and proper pre-operational demonstration is necessary; each stage should have a relatively focused on a responsibility to assume a specific role of cooperation.