Mixin' up those colors!

Kids in kindergarten and 1st grade get a lesson in primary colors.  Red, Yellow, and Blue are special because if you have them, you can make almost any color you can imagine (but if you don't have them, you're out of luck.)
Students did a little color mixing with these 3 colors to make the secondary colors:
Red + Yellow = Orange
Yellow + Blue = Green
Blue + Red = Violet