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教学内容:人教版小学数学五年级下册第3单元《长方体和正方体的表面积》教学目标:(1)让学生经历自主、探究、合作的学习过程,理解并掌握长方体和正方体表面积的概念及计算方法。(2)通过数学活动,发展学生的空间观念,让学生体验解决问题策略的多样性。(3)运用本节课所学的知识解决生活中的一些实际问题。教学重难点:重点是理解长方体的表面积及计算长方体表面积的方法;难点是熟练地掌握长方体的每个面的计算。教具准备:长方体、正方体实物;长方体、正方体教具。
Teaching content: PEP 5 Primary Volume 3 Unit “Surface area of cuboids and cubes” Objectives: (1) To enable students to go through the learning process of autonomy, inquiry and cooperation, to understand and grasp the concept of cuboid and cube surface area, and Calculation method. (2) Develop students’ space concepts through mathematical activities so that students can experience the diversity of strategies for problem solving. (3) use the knowledge learned in this lesson to solve some practical problems in life. Teaching difficult and difficult: the focus is to understand the cuboid surface area and calculate the cuboid surface area of the method; the difficulty is to master the calculation of each face of the cuboid. Teaching aids to prepare: rectangular, cube in-kind; rectangular, cube teaching aids.