Originally Posted by fwtxmom
And our school has just signed up for Everyday Math, whose curriculum is markedly deficient in . . . arrgh, fractions and long division. I keep telling myself that I can use a tutor and keep my kids up in math, but the elementary school math really does matter. This is just depressing. Good to know though. Thanks Bostonian.

There is now a federally-funded Center for Improving Learning of Fractions (!) https://sites.google.com/a/udel.edu/fractions/home with some papers co-authored by Siegler , who also co-authored the paper I mentioned.