一、知识理解功能教材中的插图有的集中反映物质的用途,有的生动地表示物质的性质、组成、结构,有的形象地揭示概念的内涵或意义,有的简明地反映物质变化或实验操作的过程,富有直观性、趣味性和指导性,对学生的学习和知识的理解起到了启发和点拨的作用。 First, the understanding of knowledge function illustrations in the textbook reflects the use of some focused, and some vividly represent the nature of the material, composition, structure, and some images to reveal the meaning or meaning of the concept, some concisely reflect the material changes or experiments The process of operation is full of intuition, interest and guidance, which has inspired and devised the understanding of students’ learning and knowledge.