Kumon has this disastrous method of giving you sheet after sheet of homework to make you good at maths. This in my opinion is useful for younger kids to give them a head start because they do not need to use calculators and Kumon does not allow you to use calculators. However, Kumon still brings this 'more worksheets equals more learning' mentality into the advanced level which just doesn't work. The employees can't explain how the questions are done and just give wrong worksheets back to your child and expect them to get it right just after they did it wrong. Kumon is also an arithmetic program, not mathematic. They only teach you to calculate without assistance, and this will not work out well for your child in school where there are many problem solving questions and question-in-questions which involve calulators and methods which differ from Kumon. Your school actually explains how to solve equations for example, but Kumon just shows a few example answers and starts giving you variations which sometimes are really hard and were not explained properly. Kumon also does not follow school methods of teaching because arithmetic methods have to use other ways of calculating mathematical equations which make using the things you learn in Kumon hard to implement in school. If you know a kid who is successful in Kumon and doing good in school exams he/she is probably just in level G and below. We have a quarterly magazine which highlights students' achievements. Most kids who get interviewed are very young and i have never seen a student on the magazine that is a level O or M, because most of these students are just average in school because the school can teach what Kumon teaches just as well, if not better. Your child will not need extra tuition like Kumon. Do not waste 100 dollars a month to get fed repetitive, boring, soul sucking work that does not reward your child in any way. The only good thing i can say about Kumon is it's advanced learning technique. You can progress past your school level in a year or two and can be doing quadratic graphs at the age of eleven. But this method also has its drawbacks as your child will probably forget what he learnt long ago.