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【教学内容】浙教版新思维《数学》四年级上册第33~35页。【教学重点、难点】理解并掌握数线段数的方法;灵活运用数线段数的方法解决有关数学问题。【教学过程】一、创设握手情境,提出思考师:同学们,生活中很多朋友见面都会(教师做出握手状),大帅哥你好,我们两个人互相握了几次手?师:如果是3个人,每两人握一次手总共要握几次手呢?【说明:通过创设握手的情境,激活学生的生活经验,教学
Teaching content] Zhejiao version of new thinking “Mathematics” fourth grade on the first 33 ~ 35 pages. 【Teaching Points, Difficulties】 Understand and grasp the number of line segments method; flexible use of number of lines to solve the mathematical problems. Teaching process First, create a handshake situation, put forward thinking Teachers: Students, many friends in life will meet (teachers make a handshake), big guy Hello, how many times did the two of us hold hands? Teacher: If yes 3 individuals, holding a hand every two people a total of several times to hold the hand? [Description: Through the creation of handshake situation, activate students’ life experience, teaching