任何一个数学概念都是建立在一个数学思想下的,这样,数学概念彼此就不孤立,概念之间也建立了一个系统。我们学习一个数学概念时,不单是研究其定义和性质,更要梳理清楚该数学概念所蕴含的数学思想。因此,我们的教学设计要着眼于知识的联系和规律,发 Any mathematical concept is based on a mathematical idea, so that mathematical concepts are not isolated from each other and concepts are also established between a system. When we study a mathematical concept, we not only study its definition and nature, but also sort out the mathematical ideas contained in the mathematical concept. Therefore, our teaching design should focus on the connection and regularity of knowledge