数学概念既是数学知识的细胞,也是思维的单元。良好的概念引入有助于学生积极主动地去理解和掌握概念,很好地把握数学概念的本质属性。因此,把握以下几个关键处,对促进概念的引入教学起着事半功倍的效果。一、在设疑激趣处引入概念是人们在长期的现实生活中对事物进行高度抽象概括的产物,它必须以具体的素材为基础,任何抽象的数学概念,甚至于抽象的数学思想和方法,都有具体生动的现实原型。学贵有疑,学起于思,思源于疑。疑问 Mathematical concepts are not only the cells of mathematical knowledge, but also the unit of thinking. The introduction of a good concept helps students to understand and master the concept proactively and grasps the essential attributes of mathematical concepts well. Therefore, to grasp the following key points, to promote the introduction of the concept of teaching play a multiplier effect. First, to introduce the concept of suspicion is the product of a highly abstract summary of things in the long-term real life. It must be based on specific material, any abstract mathematical concepts, and even abstract mathematical ideas and methods , Have a concrete vivid reality prototype. Learning expensive, learning from thinking, thinking from doubt. doubt