课题:人教版初中数学七年级上册“整式的加减(第1课时)”设计理念:本节课是从已有的知识(单项式、多项式、整式),经历提出问题(多项式能运算吗?)——思考问题(多项式如何运算?运算的法则是什么?)——分析问题(类比有理数运算,探究新知)——解决问题(发现同类项的概念,合并同类项的法则)——应用问题(能合并多项式中的同类项)递进的.通过类比有理数的运算探究合并同类项的法则,从而体会数式通性和类比的数学思想;在探究问题中,培养学生的观察 Subject: PEP junior high school mathematics seventh grade on the book “integral addition and subtraction (Lesson 1) ” design concept: This class is from the existing knowledge (monomial, polynomial, integral), ask questions (polynomial operation ?) - Thinking questions (How does a polynomial work? What is the law of arithmetic?) - Analyze problems (analogize rational numbers and explore new ones) - Solve problems (discover concepts of the same kind and combine laws of the same kind) Application problems (merging polynomials in the same category) Progressive. By analogy rational number of operations to explore the principle of merging the same kind of items, so as to understand the mathematics of mathematical generality and analogy; in the question of inquiry, to develop students’ observations