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1 教材分析“垂直”是苏科版教材七年级的教学内容,是几何的基础知识.与小学内容比较,本节更突出了思想方法的渗透,如点与直线的位置关系中的分类思想;画线段或射线的垂线、点到直线的距离中的化归思想;垂线段与点到直线的距离中的数形结合思想.教材通过折纸、画图等活动更加注重对学生自主探索精神、
1 Textbook Analysis “Vertical” is the teaching content of the seventh grade of the Su Ke textbook. It is the basic knowledge of geometry. Compared with the content of the elementary school, this section highlights the penetration of ideas and methods, such as the classification of the positional relationship between points and straight lines. Thought; the idea of drawing lines or lines from the ray to the distance from the point to the line; the combination of number and shape in the distance between the vertical line segment and the point to the line. The teaching materials focus more on the student’s independent exploration spirit through activities such as origami and drawing. ,