教学的宗旨是教会学生思考,把培养学生科学的思维方式和有益的思考方法放在首位。学生数学知识能力的获得来自于教学活动,来自于学生的抽象和运算思维活动。这就要求教师在教学过程中,不仅要钻研教材,研究教法,更要研究学法,根据儿童的认知规律和思维特点,精心设计和组织教学,为学生营造一个最佳的学习过程,使学生乐学、善学、会学。 The purpose of teaching is to teach students to think, to train students’ scientific way of thinking and useful ways of thinking in the first place. Students’ ability to acquire mathematical knowledge comes from teaching activities that come from the student’s abstraction and computational thinking activities. This requires teachers in the teaching process, not only to study textbooks, research methods, but also to study the law, according to children’s cognitive rules and thinking characteristics, well-designed and organized teaching for students to create an optimal learning process, Make students happy learning, good study, will learn.