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教学目标:1.初步理解垂直与平行是同一平面内两条直线的两种位置关系,初步认识垂线和平行线。2.通过动手操作、观察、分类比较,感知生活中的垂直与平行的现象,培养学生亲自动手操作、合作探究新知的能力;培养空间观念和空间想象能力。3.引导学生体会数学在实际生活中的应用和美感,激发数学兴趣。教学重点:正确理解“相交”互相平行“互相垂直”平行线“”垂线“垂足”等概念,发展学生的空间想象能力。
Teaching Objectives: 1. Preliminary understanding of vertical and parallel is the same plane two straight line two positional relationship, a preliminary understanding of vertical and parallel lines. 2. Through the hands-on operation, observation, classification and comparison, perception of life in the vertical and parallel phenomenon, training students hands-on operation, cooperation to explore the new knowledge ability; training space concepts and spatial imagination. 3. Guide students to experience the application of mathematics and beauty in real life, to stimulate mathematical interest. Teaching Focus: Correct understanding of “intersect ” parallel to each other “vertical ” “parallel ” “vertical ” foot "and other concepts, the development of students’ spatial imagination.