“小数乘整数”是小数乘法中最为基础的内容,也是小数乘法内容的重要组成部分。通过这部分内容的教学,一方面能使学生初步感受小数乘法的运算意义,积累探索和计算小数乘法的基本经验,并为进一步学习小数乘小数提供支持;另一方面则能使学生进一步体会数学知识之间的内在联系,感受数学学习的严谨性,培养初步的推理能力。学生学习这部分内容的知识基础主要有三个:一是整数乘法 “Fractional Multiply ” is the most basic part of fractional multiplication and an important part of the fractional multiplication. Through this part of the teaching, on the one hand enable students to experience the operational meaning of fractional multiplication, the accumulation of exploration and calculation of the basic experience of fractional multiplication, and to further learn fractional decimals to provide support; the other hand, students can further understand the mathematical The intrinsic connection between knowledge, feel the rigor of mathematical learning, develop initial reasoning ability. Students learn this part of the knowledge base there are three main: First, integer multiplication