Summary: We couldn't be happier with this product. It's changed math study for our students. We homeschool all five of our kids, (the eldest has graduated and is on to her career, the youngest is just in K), and we've seen many educational software packages. Sadly it's only very exceptional ones that are well thought out and then thoroughly implemented, providing the depth and re-enforcement that we try for with conventional curriculum.
Summary: My son and now my daughter (4yrs) have really taken to this math game. When in the car it is a great entertainer that helps them learn. Not some senseless game that wastes their valuable time.
Summary: This game requires the player to write the answer on the DS screen with the stylette pen, but the writer must be extremely precise and neat. Even still, it will give you the big red X before you are even done writing your answer! Also the little old teacher that gives instructions and expresses her disappointment in you is annoying and a total waste of time. This is NOT a game for a seven-eight year-old, whom I bought it for.
Summary: I bought this for my daughter who is in 3rd grade when she needed to memorize multiplication tables. This may be the only purchase I've made as a parent that actually achieved the goal I hoped it would. Believe me, initially my daughter was not thrilled with the idea and was horrified that I bought her a "no-fun" math game for her DSi. Nonetheless, she now loves it because it has a cute, little animated Japanese guy who encourages her to achieve to the next level.
Summary: This has been a great purchase for my 1st and 2nd graders to review addition and subtraction facts. They will also be able to use it when they advance to multiplication and division. It has been the best math fact game we have come across.