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循环小数的概念、内容较多,而且文字枯燥、抽象,如何使概念课上得直观,学生易学易懂呢?通过反复的实践,得到这样一条结论:就是通过合理的教学过程设计,突出重点,分散难点。循环小数的概念中,学生最难理解的是“一个数字或者几个数字依次不断地重复出现”,其次难以理解的是“从小数部分的某一位起”。教师在引出概念前,为了突出重点,分散其难点,设计了这样的教学过程:先口算几题简单的口算题,再尝试练习例9:1÷3,学生发
The concept of cyclic decimal, more content, and the text boring, abstract, how to make the concept class intuitive, easy to learn easy to learn? Through repeated practice, we get such a conclusion: that is, through a reasonable teaching process design, Difficulties scattered. In the concept of circular decimals, the hardest part for students to understand is that “a number or a few numbers are repeated one after another,” and secondly it is hard to understand “starting from a decimal place.” In order to give prominence to the emphasis and disperse its difficulties, the teacher designed such a teaching process before taking the concept out: first calculating a few simple questions and then trying to practice Example 9: 1 ÷ 3, the student's hair