How to simulate the sports relationship of the Sun and moon

In learning celestial knowledge, teachers often do not know what software to choose to depict the movement of the Sun and Moon. The following small part to teach you how to use the geometric drawing board to simulate this movement relationship.

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　　The geometric drawing board simulates the motion relation of the sun and Moon Land. Template Sample diagram:

The detailed steps for making the courseware are as follows:

1. Create a new geometry artboard file. Use the line segment tool to draw six segments of different lengths, named R1, R2, R3, R4, R5, R6, respectively.

2. Select the Point tool to draw a point, select the segment R1, R2, select "Construct"-"circle with center and radius" command, draw two concentric circles. The small circle is C1, the great circle is the C2. Select the Circle C1, select the Construct-Circle interior command to fill a color.

3. Select a point m on the Circle C2, select the point m and segment R3, R4, choose "Construct"-"circle with center and radius" command, draw two concentric circles, respectively named Circle C3, C4. Select the Circle C3, select the Construct-Circle interior command to fill a color.

4. Take a little o outside the circle, select the point O and Segment R5, and draw the circle C5. Take a little p on the circle C5 and draw the segment op. With the point m and segment op selected, select the construct-parallel command to draw a line that is over point m and parallel to the segment PO. This line intersects the Circle C4 at point N.

5. Select the point n and Segment R6, select the "construct"-"circle with center and radius" command to draw the Circle C6. With the Circle C6 selected, select the Construct-Circle interior command to fill a color.

6. Change the label of the circle C1 to "Sun", change the label of the Circle C3 to "Earth", and change the label of the Circle C6 to "moon".

7. Select the point M and point P, select "Edit"-"Action class button"-"Animation" command, click "OK" directly. A button that generates a "motion point" in the upper-left corner of the plot area. Change its name to "movement of the Sun and moon".

8. Beautify the interface and hide unnecessary objects. Then choose the "File"-"Save" command, named "The movement relationship of the sun and moon".

How to simulate the sports relationship of the Sun and moon