Basic colors are important for toddlers to know and identify. There are three primary and three secondary colors, created by mixing two primary colors together. Color wheels are simple ways to show the primary and secondary colors in one place. Sit down with your toddler and use crayons or paint to make a color wheel he can use, play with and practice so he doesn't go around thinking his blue shoes are red.
Draw a large circle on paper or cardstock with a compass to serve as the outline for the entire wheel. Cardstock is better to use for toddlers since they're likely to carry it around and the stronger material is less likely to rip in little, rough hands.
Separate the wheel into six equal sections using a ruler, with one color per section.
Paint alternating sections with the three primary colors (red, blue and yellow). Leave a white section in between each of the primary colors for the secondary colors.
Add equal amounts of two primary colors to each bowl, to make the secondary colors. Mix red and yellow in one bowl to make orange; mix blue and yellow in one bowl to make green; and mix blue and red in the third to create purple. Keep the amounts of paint for each color equal to make the secondary color shade come out right.
Paint the white sections with the secondary colors and let dry.
Cut the color wheel out of the sheet of cardstock. Laminate it if you anticipate it getting ruined as your toddler runs through the house and pulls on your pants constantly to show that he knows his colors.