I want the life of Fred books, so many posts say so many kids really enjoyed reading them. Besides, it's supposedly great stories that features a precocious child doing math at a younger age than is often depicted.
OTOH, hands on equations sells a set of manipulatives http://www.borenson.com/ that's a mini balance beam designed to illustrate algebra and teach what an equal sign means, because supposedly Americans don't know:
http://kitchentablemath.blogspot.com/2011/05/equation.html?m=1
(I like the quote that says "quit trying to make it about manipulatives vs. Pencil work"), ie., use your words. Er, well I guess if you're into explaining then the visuals could just as easily be 2 or 3D. So, Jenbrdsly, how different is constructivism from unschooling? smile?

I also like this lady on YouTube. She teaches structured drill. It's free. Use a whiteboard. Check out this video on YouTube:






Youth lives by personality, age lives by calculation. -- Aristotle on a calendar