Read this story about odd and even numbers. :)

http://primarygames.com/storybooks/even_odd/7d.htm

Now click below and have fun drawing odd and even numbers.
http://www.netrover.com/~kingskid/mathart/info.html

Click below and play:
http://www.learninggamesforkids.com/math_games/random-math/odds-evens-level-two.html

http://www.ezschool.com/Games/EvenOdd.html