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教学内容认识角(北师大版小学数学第四册第七单元第67—69页的内容)教学目标1.使学生通过联系生活中一些常见的物体,认识角,知道角的各部分的名称,能正确指出物体表面的角,能在平面图形中辨认角。知道角的大小与什么有关,会初步比较角的大小。2.让学生经历从实物中认识角,辨析角的过程,培养学生观察、操作、抽象、概括能力,发展符号感及空
Teaching content of knowledge corner (Beijing Normal University version of the fourth volume of mathematics fourth unit seventh page 67-69 content) Teaching Objectives 1. To enable students to contact some of the common objects in life, to know the angle, to know the name of each part of the angle , Can correctly point out the angle of the surface of the object, can identify the angle in the plane figure. Knowing the size of the corner and what is related to the initial comparison of the size of the corner. 2. let the students experience the angle of understanding from the real thing, the angle of the process of discrimination, training students to observe, operate, abstract, summarize the ability to develop a sense of symbol and empty