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制作试卷中运用几何画板作图 制作数学试卷是一件非常麻烦的事情,经常要插入各种符号和图形。大家常用的软件是Word或WPS,这两个软件在排版、符号等方面都不错,美中不足之处就是难于处理几何图形,即使用“绘图”工具,仍不能把图绘制精确。要画一个确定的角、画角平分线、平行线、垂线、三角形的内切圆、抛物线等都不可能。有了几何画板,一切都变得轻松自如。只要在几何画板中画出图形,“复制/粘贴”进Word中即可。一般的直线型图形就更不用说了。 下面以制作二次函数y=2x2-3x+4的图像为例,说明几何画板在已知方程作函数图像方面的应用。 1.新建一个绘图,选择菜单栏里的“图表”,鼠标单击“建立坐标轴”。
Making a Sketchpad with a Sketchpad Making a mathematics test is a very annoying task, often with the insertion of various symbols and graphics. Everyone’s commonly used software is Word or WPS. Both of these softwares are good at typography, symbols, etc. The only drawback is that it is difficult to deal with geometric shapes. Even if you use the “Drawing” tool, you still cannot draw the graph accurately. It is impossible to draw a definite angle, the bisector of the painting angle, the parallel line, the vertical line, the inscribed circle of the triangle, the parabola, etc. With Geometry, everything becomes easy. As long as you draw a figure in the Sketchpad, copy/paste it into Word. Not to mention ordinary linear graphics. The following uses the image of the quadratic function y=2x2-3x+4 as an example to illustrate the application of the geometric drawing board in the function image of a known equation. 1. Create a new drawing, select “Chart” in the menu bar, and click “Create axis”.