论文部分内容阅读
【教学内容】浙教版五年级上册第10~11页。【教学准备】学生自己准备直尺;教师准备数位表、1×10和10×10方格纸、空白正方形、数字卡片。【教学过程】一、提出问题,引发猜想1.先出示一个3,在后面添上0,大小是否会改变?2.出示0.3,思考在末尾添上0大小是否会改变?你有什么猜测?师:我们今天就来研究小数末尾添0、去0和小数大小之间的关系。【设计意图:从整数末尾的0入手,引发学生的认知冲突,激发学生的学习兴趣;用整数3
Teaching content】 【Zhejiang Education Edition fifth grade on the first 10 ~ 11 pages. 【Teaching Preparation】 Students prepare their own ruler; teachers prepare digital form, 1 × 10 and 10 × 10 graph paper, blank square, digital card. 【Teaching process】 First, ask questions, trigger conjecture 1. First show a 3, add 0 at the back, the size will change? 2. Show 0.3, thinking at the end Tim 0 size will change? Do you have any guess? Teacher: Today we study the end of the decimal Tim 0, to 0 and the relationship between the size of the decimal. [Design intent: starting from 0 at the end of an integer, triggering students’ cognitive conflicts, stimulate students interest in learning; with an integer 3