We received this game for free in exchange of a review. I thought my 8-year-old son, who LOVES math would really enjoy it, and I was right! We opened the box 3 days ago and now every time we have a free moment, he is asking to play. I like that it supports the elementary school curriculum which requires the kids to be able to add numbers 1-10 (in this case, 1-6) and also have them recognize quantities (as shown on the dice) very quickly. What I didn't expect was that my 4-year-old would enjoy it as well! I thought it would be way over his head (which it was) but instead of rolling the dice, I just had him look for whatever numbers we were looking for on his own set of dice (i.e. if the card asked for all 6s, he would just look on each die for the number 6 and place it in his rack). In this way, he's getting reinforcement of number recognition and understanding of quantity as well. Its a win-win for everyone, and also a lot of fun! Oh, and I love that the directions are printed on the inside of the box, rather than on a small piece of paper -- those directions always seem to get lost! Great game!