“除数是小数的除法”是小学数学计算教学中的一个重点和难点,学生在计算过程中犯错机率相当高。这个内容是继“除数是整数的除法”后教学的,所以,处理好将除数是小数的除法转化为除数是整数的除法这一块是一个重点。而且,在计算中,不容忽视的就是让学生理解并掌握计算的方法,这也是重点。针对以上特点,我重组了教材,设计了如下教案。 “Divisor is the division of the decimal ” is a key and difficult point in primary mathematics teaching, students in the calculation process a very high probability of making mistakes. This content is taught after the division of the divisor is an integer, so it is important to deal with the division that divides divisor which is a fractional number into divisor that divides integer. Moreover, in the calculation, can not be ignored is to allow students to understand and master the calculation method, which is also the focus. In view of the above characteristics, I reorganized the teaching materials, designed the following lesson plans.