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随着小学数学教学改革的不断深入,特别是九年制义务教育新教材在我国广泛推广使用之后,许多教师都已经认识到变式教学在提高学生的思维能力,培养学生的思维品质等许多方面的重要作用。但是,如何充分发挥变式教学的作用和功能呢? 1.变式教学应注意目的性 教材中可进行的变式教学的材料是多种多样的,对于同一种材料可进行各式各样的变化,不同的变式其目的也不一样。以《简易方程》一节为例,谈谈变式教学中的变式。要使学生理解概念:“什么叫做方程?”由于教材所给的定义是“含有未知数的等式叫做方程。”基于学生在直观教学中往往束缚于象“ax±b=c”的形式才叫方程,所以教师必须抓住学生的这一缺点,进行概念
With the continuous deepening of primary school mathematics teaching reform, especially after nine-year compulsory education new teaching material is widely used in our country, many teachers have already realized that variant teaching has many aspects such as improving students' thinking ability and cultivating their thinking quality The important role. However, how to give full play to the function and function of variant teaching? 1. Variant teaching should pay attention to the variety of teaching materials that can be carried out in the target teaching materials. There are many kinds of materials for the same kind of materials Changes, different variants of its purpose is not the same. Take the section of “Simple Equation” as an example, and talk about the variations in variant teaching. To make students understand the concept: “What is an equation?” Because the textbook is given the definition that “an equation with unknowns is called an equation.” Based on the fact that students tend to be tied to forms like “ax ± b = c” Equation, so teachers must grasp the student's shortcomings, the concept