According to Ilchi Lee this activity will help develop the ability to use the right and left hands simultaneously, which requires coordination of the right and left hemispheres of the brain.
01. Draw a large square on half of a piece of paper and a circle on the other half.
02. With a crayon held in each hand, trace the square with one hand while simultaneously tracing the circle with the other hand.
03. After a few minutes, turn the paper upside down and do it again, using the other hand for each shape.