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“如果先不教明概念,便是教得不好的”[1]夸美纽斯的这句话说明了概念教学的重要性.数学概念是揭示现实世界空间形式与数量关系本质特征属性的思维方式,其本身具有严密性、抽象性、科学性和明确规定性。数学教学的本质是思维展示和发展的过程,在这个过程中,数学概念教学是一个重要环节,也是学生数学思维能力产生和发展的初始阶段。抓好这个环节可以培养学生良好的数学思维能力,进而在整个数学学习过程中达到事半功倍的效果。
“If you don’t teach concepts first, you’re teaching poorly.”[1] Comenius’s words illustrate the importance of conceptual teaching. Mathematical concepts reveal the essential characteristics of the relationship between spatial form and quantity in the real world. The mode of thinking of the property itself is rigorous, abstract, scientific, and clearly defined. The essence of mathematics teaching is the process of thinking display and development. In this process, mathematics concept teaching is an important link, and it is also the initial stage of the emergence and development of students’ mathematical thinking ability. Grasping this link can cultivate students’ good mathematics thinking ability, and then achieve a multiplier effect in the entire mathematics learning process.