I have been using this to teach my two daughters (10 and 14) geometry. Would love to find more sites like this that make teaching maths fun. I do, however, gi

I have been using this to teach my two daughters (10 and 14) geometry. Would love to find more sites like this that make teaching maths fun. I do, however, give them hints on how to solve the puzzles and explain the theory of how it works.