“正比例意义”教学设计与思考

Teaching Design and Thinking of the "Direct Proportion Significance"

"正比例意义"是小学数学教学中的重要内容,可以通过"创设情境,初步感知"、"自主探究,形成概念"、"抽象概括,建立模型"、"正反例证,明晰概念"、"回顾梳理,总结评价"和"课后延伸,拓展应用"一系列的教学过程,让学生在丰富有趣的学习材料中自主寻求知识,在实施教学过程中应力求学习内容生活化,让学生经历概念建构的过程,并让学生在知识的对比中学习,让学生在体验、感悟中增强对正比例概念最本质属性的认识和理解。

The significance of direct proportion is the important content of the mathematics in primary school. Through carrying out a series of teaching processes, include ＂creating the situa- tions, the initial perception＂, ＂self-exploration, the formation of concepts＂, ＂abstracting the concepts, the construction of model＂, ＂giving the positive and negative examples, the defining the con- cept＂, ＂review and evaluation＂, and ＂after-school extension, de- veloping the application＂, the students can independently acquire knowledge in the rich and interesting learning materials. It is noteworthy that you should try your best to choose learning con- tent from daily life, allow the students to experience the building process of the concepts, allow students to acquire knowledge in contrast, thus enhancing the students＇ awareness and under- standing of the concept of direct proportion.