论文部分内容阅读
教学内容苏教版小学数学一年级上册第22、23页教学过程一、激趣引趣估一估,抓一抓。师:看!老师给大家带来一件礼物(出示装有玻璃球的袋子,每组一袋)猜!袋子里装的是什么?想看看吗?(学生打开袋子露出玻璃球)师:估计一下自己一次能抓几颗玻璃球?再抓一抓,看谁估计得最准?(通过活动初步接触6~9,相机揭示课题。)(设计意图:利用抓玻璃球活动引发学生学习兴趣,提高学生估计能力,培养学生数感。)二、新知探究
Teaching content Supiao version primary school mathematics first grade on the first page 22, 23 teaching process One, interesting interest to assess an estimate, grasp. Teacher: to see! The teacher to bring you a gift (showing the bag with glass balls, each bag) Guess what is in the bag? Want to see? (Students open the bag exposing the glass ball) Teacher: Estimating how many glass balls he can grab at a time? Then grab one by one and see who is estimated to be the most accurate? (Through preliminary contact with the event 6 ~ 9, the camera reveals the subject.) (Design intent: use of glass ball activity trigger students interest in learning , Improve students’ ability to estimate, develop a sense of number of students.) Second, the new knowledge to explore