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课本知识是狭窄的,如何通过这一狭窄的知识载体,引领学生通往外界宽泛、丰富、广阔的知识世界?变式教学就是一个十分有效的方法。在数学概念教学中,可以通过直观或具体的变式、非标准形式、非概念变式,明确概念的具体含义,凸显概念的本质属性,加深概念的理解内化,促使学生形成对概念的主观性判断,体悟知识的关联性和其中蕴含的数学思想方法,实现知识的自主构建,并享受数学学习的快乐。
Textbook knowledge is narrow. How to lead students to a broad, rich and vast knowledge world through this narrow knowledge carrier? Variant teaching is a very effective method. In the teaching of mathematical concepts, the specific meanings of concepts can be clarified through intuitive or concrete variations, non-standard forms and non-conceptual variations, so that the essential attributes of concepts can be highlighted, the understanding and understanding of concepts can be further deepened, and students can be encouraged to form subjective concepts Sexual judgments, understanding of the relevance of knowledge and the mathematical thinking contained therein, to achieve the independent construction of knowledge, and to enjoy the joy of mathematics learning.