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能量本身是一个抽象的概念,能量流动也是抽象的。在学生原有的认知结构中,对于能量流动的过程和特点很是生疏,因而成为其认知上的难点。可利用图解法帮助学生加深对能量流动的认识和理解。一、“拼图法”(输入第一营养级的能量分析)输入第一营养级的能量(W_1)被分为两部分:一
Energy itself is an abstract concept, and energy flow is abstract. In the original cognitive structure of students, the process and characteristics of energy flow are very rusty, which has become its cognitive difficulties. Graphical methods can be used to help students deepen their understanding and understanding of energy flow. First, the “puzzle method” (enter the first trophic level of energy analysis) Enter the first trophic level of energy (W_1) is divided into two parts: one