He knows the color blue and this week I started with red. I took a red and blue basket and filled them with red and blue toys. He has enjoyed dumping them, looking at each little toy, playing with refound items he had forgotten about, and sorting them. He got a little better each day we did this activity. He thinks it is great fun with all of us sitting in the floor with him.
He loves to paint so I let him have at it with red paint. :) The masterpiece now hangs on my fridge.
He also played with seperating the darkness from the light with a flashlight and glowsticks.