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一、教学目标1.学生经历8、7加几计算方法的探索过程,学会用“凑十法”计算,初步学会用交换加数位置的方法进行计算。2.学生在学习过程中进一步培养探索、合作和交流的意识,初步体会计算方法的多样性,培养抽象思维及其灵活性。3.学生能运用所学知识解决生活中的实际问题,体会数学的作用,获得成功的喜悦,初步培养数学的应用意识。二、教学重难点8、7加几的凑十法。三、教学过程1.复习口算,激活旧知。谈话:我们先来看一些口算,
First, the teaching objectives 1. Students experience 8,7 plus a few calculation methods to explore the process, learn to use “Minato ten ” calculation, preliminary learn to use the method of exchange of addend places to calculate. 2. Students in the learning process to further develop awareness of exploration, cooperation and exchange, the initial realization of the diversity of computational methods to develop abstract thinking and its flexibility. 3. Students can use their knowledge to solve practical problems in life, understand the role of mathematics, the joy of success, the initial development of mathematical application of consciousness. Second, the teaching difficult 8,7 plus a few ten method. Third, the teaching process 1. Review mouth count, activate the old knowledge. Talk: Let’s look at some words first,