本节课要让学生经历探究过程,积累数学活动经验。这样的探究活动,如果组织不好,学生便是简单的操作者,探究便成为机械执行命令的过程。如何让学生有效探究?具有研究者的“自觉的问题意识”?本课抓住“问题”不放,将“问题”渗透在每一个教学环节之中,在“问题”的引领下,让学生经历研究的过程,实实在在地做了一回研究者。 This lesson should enable students to go through the exploration process and accumulate experience in math activities. Such inquiry activities, if the organization is not good, the student is a simple operator, and inquiry becomes the process of mechanical execution of the order. How to make students effectively explore? With the researcher “Conscious Problem Consciousness ”? This lesson grasps “Problem ”, let “problem ” infiltrate in every teaching link, "Under the guidance of allowing students to go through the process of research, really made a back to the researcher.