一、正确处理课前预习、课上学习“生态系统的能量流动”是人教版高中生物必修三的内容,属于生态与环境的范畴。本节包括能量流动的过程、能量流动的特点和研究能量流动的实践意义三大部分,要点比较明确,但由于本节将应用与分析结合在一起,因此学生掌握起来还是有一定难度。本节试图采用“课前完成预习,课上重点以小组 First, the correct handling of pre-class study, class learning ”Ecosystem energy flow “ is the content of the PEP biology compulsory three, belongs to the category of ecology and environment. This section includes the process of energy flow, the characteristics of energy flow and the practical significance of studying the energy flow. The points are relatively clear. However, due to the combination of application and analysis in this section, it is still difficult for students to master it. This section attempts to use ”to complete the preview before class, the class focuses on the group