自主探索、合作交流,形成思维碰撞在“课题学习”课型上显得尤为重要。本文以一堂课题活动课《等分多边形的面积》为例,主要围绕课题活动课要求:原有知识经验需明确,有建构新知识的合理过程,给予知识生长的条件,让学生自主生成知识生长的欲望。 Independent exploration, cooperation and exchange, the formation of thinking collision in the “subject learning” class is particularly important. In this paper, a subject activity class “equal parts of polygons” as an example, mainly around the activity class requirements: the original knowledge of the need to be clear, there is a reasonable process of building new knowledge, to give the conditions for knowledge growth, so that students generate knowledge to grow independently Desire.