Some netizens said they are not familiar with the Geometric Sketchpad software. Today, the editor has shared a tutorial on how to draw number axes with the Geometric Sketchpad. Friends in need should take a look!

Step 1: Create new parameters

Open the Geometry Sketchpad, click "Data" - New Parameter in the menu bar. In the New Parameter dialog box that appears, set the "Value" to 1, the "Unit" to None, and click the "OK" button. You can see that the newly created parameter t1 has appeared. Create a new parameter in the same way, set "Value" to 1 and "Unit" to None.

Step 2: Draw the number line

Click "Custom Tools" - Line Tool - Number Axis on the toolbar on the left side of the geometry sketchpad.

Note, click the mouse three times, the first click on parameter t1, the second click on parameter t2, and the third click on a blank position, and now the coordinate axis will appear.

Step 3: Number axis adjustment

​ ​ 1. Increase and decrease scale

Click the "Move Arrow Tool" on the left toolbar and drag left or right on the direction arrow on the right side of the number axis to reduce or increase the number of scales.

​ ​ 2. Determine the origin of the coordinates

At the beginning, the default coordinate origin of the coordinate axis is on the far left. If you want to adjust the position of the coordinate origin, click the "Move Arrow Tool" on the left toolbar, hold down and drag left and right on the number axis. You can reduce the coordinate axis to move left and right, but the origin will not change. move.

3.Move the number axis

Click the "Move Arrow Tool" on the left toolbar, hold down the coordinate origin of the number axis and drag it up, down, left and right to move the position of the number axis up, down, left and right.

The above is the operation process of drawing a number axis on the geometric sketchpad that the editor has shared with you. Let’s learn it together. I believe it can help some new users.