Let the child lift out the jar lid and put it back in the circle again.
Does the child sometimes invert the lid when he puts it in?
Glue matching pictures inside the jar lid and inside the circle on the board to make a simple matching game.
Use two or three different sizes of jar lids and cut corresponding holes in the board, so the child must be aware of size as well.
The child relates the positive and negative spaces, and practices fine motor skills.