On the subject of teaching math to kids I found two books quite fun (and my daughters have been enjoying them as well). 1. Moebius Noodles 2. Avoid hard work!

On the subject of teaching math to kids I found two books quite fun (and my daughters have been enjoying them as well). 1. Moebius Noodles 2. Avoid hard work! Both of these take a playful approach to teach quite advanced mathematical concepts. What I particularly liked was a focus away from calculations and numbers. The argument given in one of the books is that starting to teach math by counting and then calculation is like only starting to read books after children learned the alphabet. Children are very capable to figure out more advanced maths concepts even without being able to calculate fluently yet.