Play a shadow game
The sun rises in the east and sets in the west because of the rotation of the earth, how to let your baby see the changes of the sun during the day? Play a shadow game.
Take advantage of the warm spring sun, take your baby outdoors and stand well with chalk to mark this position, leaving a shadow on the ground. After a few hours and then come back, the shadow is no longer in the original position, repeat several times together to observe the shadow shape and position changes. The shadow has turned most of the way around, which means that the sun is also turning.
See how the shadow on the ground can also play, step on the shadow game can not miss. Shadow this out of doors with their own props, simple and fun, step on each other's shadows, see how flexible baby dodge.