I am a co-founder of Lymboo Math (http://lymboo.com http://lymboo.com) We designed Lymboo Math to be a comprehensive, structured, and rigorous math enrichment p

I am a co-founder of Lymboo Math (http://lymboo.com http://lymboo.com) We designed Lymboo Math to be a comprehensive, structured, and rigorous math enrichment program. While most programs focus only on short-term mastery of math concepts, Lymboo Math's emphasis is on both short-term proficiency and long-term retention. We do this by incorporating spiral reviews at periodic intervals. Our spiral reviews are 'spaced' both in time and in content, i.e., students are assessed on multiple topics in the same test. The mixed spiral reviews improve students' context switching skills and at the same time enhance retention of learned concepts. You can learn more about our philosophy here: http://lymboo.com/about http://lymboo.com/about and http://lymboo.com/tour http://lymboo.com/tour Thanks. Bala