Practice problems for basic skills: PDF, Mix and match
Link to the psychology
study on math anxiety in the classroom that we heard about from Gerardo Ramirez.
Reference: Beilock, S.L., Gunderson, E.A., Ramirez, G., & Levine, S.C. (2010). Female teachers' math anxiety affects girls' math achievement. Proceedings of the National Academy of Sciences, USA, 107(5), 1060-1063.
Library of virtual manipulatives: not that well-explained, but super-cool if you take the time to figure out the applets.
Here are the Michigan Grade Content Level Expectations (GLCEs) that tell you what mathematical material is expected to be taught in which grade.
Online soroban (Japanese abacus), and a manual for how to use it.
Some recent newspaper articles about education:
Go to Presentations.