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【教学内容】义务教育课程标准实验教科书四年级数学上册第35～36页。【教学目标】知识与技能:1.使学生认识射线、直线,能识别射线、直线和线段三个概念之间的联系和区别。2.使学生认识角和角的表示方法,知道角的各部分名称。过程与方法:1.经历直线、射线、角的认识过程,体验比较的方法。3
【Content】 compulsory education curriculum standard experimental textbook fourth grade mathematics on the first 35 ~ 36 pages. 【Teaching Objectives】 Knowledge and Skills: 1. To enable students to understand the ray, the line, can identify the ray, the line and the line between the three concepts and the difference between. 2. To enable students to know the angle and angle representation, know the name of each part of the angle. Process and methods: 1. experience straight line, ray, angle of understanding process, experience the method of comparison. 3