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感知是学生掌握知识,形成技能,养成良好品德的必要条件.儿童获取丰富而正确的感性材料的主渠道是教师的演示和学生的操作.因此无论是义务教育教材的编排内容,还是老师在教学中都越来越重视学生的操作.如何更好地运用教材,组织学生动手操作,把抽象的数学概急外化、物化,逐步引导到抽象呢?教学中教师应做好如下几点:
Perception is a necessary condition for students to master knowledge, form skills, and develop good morals. The main channel for children to acquire rich and correct perceptual materials is the teacher’s demonstration and student’s operation. Therefore, whether it is the arrangement content of compulsory education materials or the teacher In teaching, students pay more and more attention to the operation of students. How to use the teaching materials better, organize students’ hands-on operations, abstract the mathematics to externalize and materialize, and guide them gradually to abstraction? Teachers should do the following in teaching: