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课题:第二章第三节第2课时化学反应为人类提供能量三维目标:【知识与能力】引导学生掌握原电池的工作原理。能判断原电池的正负极,电子流动方向,溶液中阴阳离子移动方向。【过程与方法】通过分组实验培养学生的观察能力、实验能力和分析能力。【情感态度与价值观】为学生提供丰富的材料,开拓他们的视野,使他们体会化学科学与社会发展的密切关系。
Topics: Chapter 2, Section 3, Lesson 2 Chemical Reactions Provide Human Energy with 3D Objectives: [Knowledge and Ability] Guide students in mastering the working principle of primary batteries. Can determine the original battery anode and cathode, electronic flow direction, the direction of the mobile anion and cation. [Process and methods] through group experiments to develop students’ observation ability, experimental ability and analytical ability. [Emotional Attitude and Values] To provide students with rich materials, develop their horizons, so that they understand the close relationship between chemical science and social development.