My 4 year old son loves this card game, and without realizing it, they learn to recognize numbers from 1 to 9. My 3 year old twins just started and so learn colors (red, blue, yellow and green) and the numbers do them no problem. In short, the three children often ask to play. The game is very simple. This is great! I recommend the version "deluxe" for toddlers. It's easier for them to take the cards from the deck with their little clumsy hands again.