如何指导学生实地测量

在教学中密切联系教材适当安排一些测量实习,如:应用全等三角形的性质测量两点的距离,应用线段垂直平分线的性质测量矩形对角线的长,应用三角形中位线定理测量不能直接测量的两点距离,应用勾股定理测高,应用相似三角形的性质测量各种高度,应用解直角三角形的方法测量高度等,既可以巩固和提高理论知识,又可以培养学生的实践能力,是当今素质教育的需要.

How to Instruct Students In Land Survey

It is quite necessary to arrange appropriate land survey practice closely related to the teaching material in teaching,such as to measure the distance between two points with the property of congruent triangle, to measure the length of rectangle diagonal by using the property of section vertical bisector, to measure the distance that cannot be directly measured between two points with median theorem, to measure the height with Pythagorean theorem, to measure all kinds of heights by using the property of resembling triangles and to measure heights by using methods for solving right-angled triangles. It can consolidate and improve students' theoretical knowledge. At the same time, it can also develop students practical skills.