教学目标(一)教学知识点1.学生借助自己熟悉的事情,从不同角度感受百万分之一。2.学生能用科学记数法表示较小的数。(二)能力训练要求让学生通过自己熟悉的事物体会百万分之一,发展学生的数感,培养学生从较小数据中获取信息的能力。(三)情感与价值观要求1.培养学生合作交流的意 Teaching Objectives (A) Teaching Points of Knowledge 1. Students with their own familiar things, feel different parts of the millionth. 2. Students can use scientific notation to represent smaller numbers. (B) Competency training requires students to experience one millionth of what they are familiar with, develop a sense of number in their students and develop their ability to obtain information from smaller data. (C) the feelings and values ​​of requirements 1. to develop the meaning of cooperation and exchange of students