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有效的导入可以达成多方面的教学目的:引发认知冲突,引领学生不由自主地陷入思维情境之中;制造悬念,紧紧抓住学生注意力,焕发追根究底的探求热情;将鲜活的生活资源之水引进课堂,让学生领略到数学在生活中实实在在的应用……总之,不管导入的形式或方法如何,其目的都是为了激发学习兴趣,引发渴求知识、解决问题的的欲望与热情。一、通过引领学生去经历和体验,实现对概念的有效导入有些概念的导入不能凭借教师“直白地告诉”学生的内
Effective import can achieve a variety of teaching purposes: triggering cognitive conflicts, leading students involuntarily fall into the thinking situation; create suspense, firmly grasp the students attention, full of search motivation; full of fresh life The water of resources is introduced into the classroom so that students can appreciate the real application of mathematics in life ... In short, the purpose of any form or method of introduction is to stimulate the interest in learning, to provoke the desire to knowledge and to solve problems enthusiasm. First, by leading the students to experience and experience, to achieve the effective introduction of the concept of some concepts can not be imported by teachers, “straightforward to tell ” within the student