The Big Dipper changes all the year round.

The spoon-shaped center of the Big Dipper always faces the North Star. According to the changing direction of the Big Dipper throughout the year, the drawing steps are as follows:

1. Draw a Polaris and draw four 45-degree diagonal lines around it. The center of the Big Dipper spoon points to Polaris, and the tail of the spoon points in the positive direction.

2. When the spoon tail points to the east, it is spring, and when the spoon tail points to the west, it is autumn.

3. When the spoon tail points to the south, it is summer, and when the spoon tail points to the north, it is winter.