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教学内容:人教版《义务教育课程标准实验教科书·数学》二年级下册第98~100页例5及相关练习。教学目标:1.能结合具体情境,进行简单的加、减法估算,体会估算在生活中的应用价值,增强估算意识。2.培养学生根据具体情况选择适当方法解决实际问题的意识,体验估算的多样化。3.感受数学与生活的联系,激发学生
Teaching content: PEP “compulsory education curriculum standard experimental textbook” mathematics "second grade volume 98 ~ 100 page 5 and related exercises. Teaching objectives: 1. Can be combined with the specific situation, a simple addition, subtraction estimation, experience in estimating the value of life in the application, enhance the sense of estimation. 2. Training students to choose the appropriate method to solve practical problems based on the situation, to experience the diversity of estimates. 3. Feel the connection between mathematics and life, to stimulate students