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1教材分析教学内容:青岛版《义务教育课程标准教科书·数学》七年级上册“6.2同类项(第一课时)”.1.1地位与作用“同类项”是学习整式运算的基础,是《义务教育数学课程标准(2011年版)》(以下简称《课标(2011年版)》界定的“数与代数”方面的基础内容.在此之前,学生已经学习了用字母表示数,整式的概念、单项式、多项式以及有理数的运算.这些知识是学习同类
1 textbook analysis Teaching content: Qingdao version of “compulsory education curriculum standard textbook · Mathematics” on the seventh grade “6.2 similar items (the first class) ” 1.1 status and role “similar items ” is to learn the basis of integer arithmetic, Is the foundation of “Number and Algebra” defined in the Standard for Compulsory Education Mathematics (2011 Edition) (hereinafter referred to as the “Standard (2011 Edition).” Before that, students had learned to use alphanumeric characters, Integer concepts, monomials, polynomials, and operations on rational numbers, which are similar