This product is really fun to learn and it can really amaze a group of children. It does depend on simple math problems that an older school age child can understand. Visual discrimination is also exercised through recognition of letters as well as memorization. My 6 year old had trouble with 1 of the games because adding in his head was too difficult with 2 digit numbers. The age for the product should probably be rated 8 and older, but we had a great time playing it and my son wants to share the tricks at the next birthday party he attends.