教学内容北师大版一年级下册第64、65页。【教学目标】1.结合分扣子的实践活动,了解分类是需要标准的,在不同的分类标准下结果可能是不同的。2.经历实际操作的过程,初步提高把握图形特征、抽象出多个图形共性的能力以及整理数据的能力。3.获得初步的数学活动经 Teaching content Beijing Normal University version of the first grade volumes on the next 64, 65 pages. 【Teaching Objectives】 1. With the practice of sub-buttons, to understand the classification is the standard, under different classification criteria the results may be different. 2. Experience the actual operation of the process, initially improve the ability to grasp the characteristics of the graphics, abstraction of a number of common graphics and the ability to organize data. 3. Get a preliminary mathematical activity