2022年人教版二年级上册角的初步认识教案 .pdf
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2022年人教版二年级上册角的初步认识教案 .pdf
学忆乐教育数学 学科导学案(第次课)教师:学生:年级:日期:星期:时段:课题角的初步认识教学目标认识角,区别直角、钝角、锐角教学重点教学难点教学方法学习内容与过程1、一个角是由()个顶点和()条边组成的。2、一个三角板有()个角,其中有()个直角,()个锐角。3、一个长方形有()个角,有()个角是直角。4、拿一张纸,先上下对折,再()对折可以得到直角。5、一条红领巾有()个角,一面国旗有()个角。6、一个长方形中有()个直角,两块手帕有()个直角。7、三角板上有()个角,其中最大的那个角是()角。8、一个角有()个顶点,()条边。9、角的大小与()无关,与()有关。10、比直角大的角叫()角,比直角小的角叫()角。11、角的大小与()无关,与()有关。12、在钟面上,3 时整时针和分针组成()角;7 时整时针和分针组成()角;8时半时针和分针组成()角。13、在加法算式中:一个加数=()()在减法算式中:被减数=()()减数=()()一、哪些是角在()里画,哪些不是角在()里画二、画一个角并标出各部分的名称。三、你能用你所学的方法看出这两个角的大小吗四、小朋友们,你能数出下面图形里角的个数吗?()个钝角()个直角()个钝角()个角8、下列各角中,()是直角,()是锐角,()是钝角。五、下面同学说的话对吗?对的画“”,错的画“”小红说:三角板中最大的角就是直角()小青:角的两条边越长,这个角就越大()强强说:用纸折角,折出的角的大小,与这张纸的大小无关()亮亮说:老师的三角板上的直角比学生三角板上的直角大()文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9文档编码:CA1Y5Y3Y1O7 HZ3G9V9P9G1 ZL4G4Q1C10X9丫丫说:一张正方形的纸,用剪刀剪去1 个角以后,还有 3 个角()小小说:一个正方形里的直角的个数与一个长方形里直角的个数是相同的()六、我会作图1、画一个图形。(要求图形里含有1 个直角和 2 个小于直角的角)2、画一个图形。(要求有4 个直角)3、画两个角,其中1 个角小于直角,另1 个角大于直角。七、下面的图形中各有多少个角?()个角()个角()个角八、我们以前认识了正方体、长方体、圆柱等立体图形。想一想它们哪些有角?有多少个角?()个()个()个文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5学生对本次课的小结及评价1、本次课你学到了什么知识2、你对本次课评价:特别满意满意一般差学生签字:课后作业情况:有(见附件)无教学小结:教师签字:审阅签字:时间:主任签字:时间:文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 ZB10V2D1H3H5文档编码:CM9T9K6R10R9 HH6G1B1C4X5 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