一年级数学上册第1单元准备课《数一数》重难点突破新人教版.doc

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1数一数一、通过数一数的活动,初步了解学生的数数认数的情况以及计数的基本方法。突破建议:(1)精心制作好教具、学具、课件,激发学生学习兴趣。(2)从学生已有经验入手,使学生经历唱数到点数的过程,感受到点数与物之间一一对应的关系。在全面观察主题图的之后按照一定的顺序,如从上到下或从左到右的顺序依次数出图中人物、物品的数量,用集合的方式从主题逐一抽象而出,并逐一抽象出各数。学生要经历从整体到局部再到整体的观察过程,经历从数到抽象出集合圈再到抽象出数的过程。二、培养学生的观察能力、语言表达能力和倾听能力,建立课堂常规。突破建议:(1)构建问题体系。可以设计以下问题:问题 1:图中有什么?问题 2:你能看到图中有几只鸽子吗?请你数一数。让我们看看他是怎样数的?问题 3:图中还有什么,有多少呢?和你身边的同学交流一下吧?问题 4:让我们按照顺序找一找,数一数吧。(2)指导学生用数学语言提问或者回答问题。例如,学生看图之后会说“有 3 个小朋友在玩” 。教师要抓住学生说的“3” ,引导学生说出“有 3 个小朋友在玩,可应用 3 表示” 。教师这样引导学生,就实现了初步用数学语言回答问题,长期训练学生对数就有了感觉。

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