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教学内容:《长方体和正方体表面积》。教学目标:①让学生理解长方体和正方体的表面积意义,初步学会长方体表面积的计算方法。②能根据现实情景和信息,通过动手操作、小组合作、观察思考等解决问题的方法,去探求、经历、感受长方体和正方体的表面积概念和长方体表面积计算方法,培养学生的动手操作、观察、抽象概括、探究问题的能力和初步的空间观念。③使学生感受到数学与生活的密切联系,培养学生初步的数学应用意识,并在探究过程中获得积极的数学情感体验。
Teaching content: “cuboid and cube surface area.” Teaching Objectives: ① let students understand the meaning of the surface area of cuboids and cubes, initially learned how to calculate the cuboid surface area. ② according to the actual situation and information, through hands-on, teamwork, observation and thinking to solve the problem, to explore, experience, feel the surface area of the cuboid and cube concept and cuboid surface area calculation method, training students to operate, observe, abstraction Summarize, explore the capacity of the problem and the initial concept of space. ③ enable students to feel the close connection between mathematics and life, cultivate students’ initial awareness of mathematical applications, and in the process of inquiry to obtain a positive mathematical emotional experience.