Begin by explaining that the Earth orbits the sun. It goes around the sun once a year. Students can drag the Earth on the board to bring it around the sun. Next, describe Earth’s rotation and explain that it takes Earth 24 hours to make one complete rotation. After this, explain the Earth’s tilt. Because of the Earth’s tilt, some places get more sun than others. Show students the image on the board and show them the Northern and Southern hemispheres. Which is getting more sunlight in the picture? Show students the Earth’s position during each of the four seasons. Have students drag the season to the correct position of the Earth.