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教学内容:人教版数学二年级上册第二单元第一小节第11-12页的内容。一、教材分析“100以内的进位加法”主要解决两个问题:一是个位上的数相加满10如何向十位进位;二是笔算两位数加法计算方法的总结。本课教学前学生已经熟练地掌握了两位数加、减一位数和整十数的口算,两位数加两位数不进位的笔算,这都为本课内容的学习奠定了基础。本课的学习又是今后学生进一步学习多位数的加法、四则混合运算的基础,本课内容起着承前启后的重要作用。
Teaching content: PEP mathematics grade two volume two of the first section on the first 11-11 page content. First, the textbook analysis “Addition of carry within 100 ” mainly to solve two problems: one is the number of bits plus 10 how to carry the ten; second is the calculation of the two-digit sum calculation method. Before the class teaching students have mastered the double-digit plus, minus one-digit and the whole number of the mouth count, two-digit plus two-digit non-carry pen calculations, which are for the learning content of this course laid the foundation. This lesson is the future of students to learn more about the addition of multi-digit, four hybrid computing based on the content of this lesson plays an important role in past and future.