小数乘法和除法是在学生学习了小数的意义和性质,会进行小数加、减法的基础上进行教学的,本节课“小数和整数相乘”既是小数乘法的重要组成部分,也是进一步学习和探索小数乘小数的基础。考虑到小数乘法的计算在日常生活以及进一步学习中都有广泛的应用,学生或多或少都接触过,本节课的教学中,我尤为注重联系学生的知识基础和生活经验,感知算理,取得了不错的教学效果。现撷取其中的几个教学片断予以剖析,以飨读者。 Fractional multiplication and division is the meaning and nature of the decimal learned in the students, will carry out the decimal addition and subtraction based on the teaching, this lesson “fractional and integer multiplication ” is an important part of the fractional multiplication, but also further Learn and explore the basis of fractional numbers. Taking into account the calculation of fractional multiplication in daily life and further study has a wide range of applications, students have more or less exposed, the teaching of this lesson, I pay particular attention to contact the students knowledge base and life experience, perceived arithmetic , Made a good teaching effect. Some of the pieces are now extracted to analyze the teaching to readers.