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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。教学重点:引导学生按照不同的标准进行分类。教学难点:经历实践操作过程,让学生理解分类方法的多样性,感受数学在日常生活中的应用。教具与学具:多媒体课件、纸质扣子、益智学具(拥挤的动物园)。教学过程:一、激趣导入师:你们喜欢什么?今天我带来了一些图片,一
Teaching objectives: 1. With the practice of sub-buttons, understanding the classification is required 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. Teaching focus: guide students to be classified according to different standards. Difficulties in teaching: Experience the practical operation of the process so that students understand the diversity of classification methods, feel the application of mathematics in daily life. Teaching aids and learning tools: multimedia courseware, paper buttons, puzzle learning (crowded zoo). Teaching process: First, interested import division: What do you like? Today I brought some pictures, a