Some friends have just started using Geometric Sketchpad and said that they still can’t draw a point moving along a certain arc. In fact, it is very simple. Today I will share the detailed steps of drawing a point moving along a certain arc with Geometric Sketchpad. Friends who need it can join us. Take a look.
Construct an arc. To create an animation of points moving on an arc, you first need to construct an arc. The arc is obtained based on the circle, so you still need to draw the circle in the geometry sketchpad first.
Select the "Circle Tool" button on the left sidebar, click the mouse in the working area on the right, drag the mouse after determining the center of the circle, and click the mouse again after determining the size of the circle to draw the circle. .
To construct an arc with the help of a circle, first pick two free points on the circle, select the "Point Tool" button on the left sidebar, pick two points A and B on the circle, and use the move tool to select the center and center of the circle in sequence. Point A and point B, click the "Construction" menu in the upper menu bar, and select the "Arc on Circle" command from its drop-down option, thus obtaining arc AB.
Construct a free point C on arc AB. Select "Move Tool" in the left sidebar, click the "Construction" menu in the upper menu bar, and select the "Point on Arc" command from its drop-down option, so that you can get the free point C.
Make an animation of the points. Use the move tool to select point C, click the "Edit" menu in the upper menu bar, select the "Operation Button" - "Animation" command in the drop-down option, click OK in the pop-up dialog box, so that you get the animation point button, click With this button, point C can freely move back and forth on arc AB. Hide unnecessary objects and the final effect is as shown in the figure.
The above explains the detailed steps for drawing a point moving along a certain arc on the geometric sketchpad. I hope friends in need can learn it.
