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教学目标:1.经历解决问题的过程,学会用两步乘法解决问题,感受解决问题策略的多样化。2.能从多个角度解决同一问题,提高解决问题的能力,发展思维。3.感受数学知识在生活中的应用价值,体验成功的快乐。4.结合教学渗透思想教育。教学重点:正确分析数差关系,能用两步乘法解决问题。教学难点:解决问题的思考过程。教学过程:一、情境引入,激活思维师:“六一”儿童节快到了,学校准备举行一次乒乓球比赛,借这个机会,我们三(1)班也举行一次乒乓球比赛。现在由班长小芳去超市购买乒乓球,需要买的个数如图所示,请
Teaching objectives: 1. Experience the process of solving problems, learn to use two-step multiplication to solve the problem, feel the diversity of strategies to solve problems. 2. From a number of perspectives to solve the same problem, improve the ability to solve problems, develop thinking. 3. Feel the application of mathematical knowledge in life, experience the joy of success. 4 combined with teaching infiltration of ideological education. Teaching focus: The correct analysis of the relationship between the number of differences, can use two-step multiplication to solve the problem. Teaching difficulties: the process of thinking to solve the problem. Teaching process: I. Situational introduction, activation of thinking division: “61” Children’s Day is approaching, the school is going to hold a table tennis competition. With this opportunity, we also hold a table tennis game in three (1) classes. Xiao-Fang squad leader now go to the supermarket to buy table tennis, the need to buy the number shown in the figure, please