Talk about the pictures. Tissue scraps, material scraps, colored paper shapes can also be cut and pasted. Draw on paper with chalk. Put butcher paper on the wall and have the child draw a mural on it. Try wetting paper with a sponge and then drawing on it with chalk.
Chalkboards are a good addition to a toy supply.
Make a chain out of construction paper. Hook one link inside another, and talk about colors. Put some powdered paint in an old salt shaker. Take the child for a walk in the snow and let him shake paint on the snow to color it. Make a picture on the snow.