《整数乘分数》教学反思

《整数乘分数》教学反思
本单元的教学分数乘法,教学时都要避免上成单纯的计算课。本课教学整数乘分数,教学的重点是理解算理,即几个几分之几相加。例题教学时,要重点探讨3/10×3的计算方法,有两种方法,一种是联系分数的意义,即合起来共9个1/10;另一种方法是根据分数乘法的含义改写成连加算式。教学时,由于时间关系,没有给予学生探索的时间。另外,学生计算时还会出现不少细节性问题,如:约分要写在数字的左面、右面;计算后才约分;结果不是最简分数;分母与分子相乘,需要多寻找错误资源,及时纠正。

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