论文部分内容阅读
一、整体感知 “分数的意义”这部分内容是在学生已经知道了 “把一个物体平均分成若干份,其中的一份或几份可以 用分数表示”基础上进行教学的。本课是学生系统学 习分数的开始。通过这部分内容的教学,重点使学生 理解把一些物体看成一个整体平均分成若干份其中的 一份或几份也可以用分数表示。理解单位“1”的含义 并建立分数的概念,为今后学习打好基础。
First, the overall perception “meaning of the score ” This part of the content is already know in the students “to an object divided into several copies, one or more of which can be expressed by the score ” based on the teaching. This lesson is the beginning of a student’s system learning score. Through the teaching of this part of the content, focusing on enabling students to understand the total number of objects as a whole divided into several of which one or several of them can also be expressed as scores. Understand the meaning of the unit “1 ” and establish the concept of scores to lay the foundation for future learning.