概念是对事物的结构、原理及规律的精确而本质的阐述,也是学生进一步探究深层的事物与规律的基础,具有很强的客观性、概括性和抽象性。学生学习知识,在一定意义上来说,主要是掌握概念和由概念组成的系统。怎样让学生正确理解和掌握概念,基于建构主义的思想关键是让学生自主建构概念。下面,我以《细胞的分裂、生长和分化》为课例,来加以分析和探讨。 Concept is an accurate and essential explanation of the structure, principle and law of things, which is also the basis for students to further explore the deep things and laws. It has strong objectivity, generality and abstraction. Students learn knowledge, in a certain sense, mainly grasp the concept and the concept of the system. How to enable students to correctly understand and master the concept, based on the idea of ​​constructivism is to allow students to build their own concepts. Next, I will be “cell division, growth and differentiation” as a lesson to be analyzed and discussed.