Math tub ideas - so many great ideas to use with Common Core
Teaching math with playing cards - series of blog posts.
Domino math. Cool.
1st Grade Math Game - 1 more, 1 less; 10 more, 10 less.
Math Center Games with PDFs of sheets to go with them. FANTASTIC site! Saved a lot of time , and easy instructions
Math - Games & Coloring
Mrs. Riccas Kindergarten: Common Core Standards
First Grade Common Core - Two Digit Addition with/without regrouping.Students roll two dice to create their own addition problems.
In The Classroom
Free shake and spill ladybug math mats for 4, 5, and 6
Anchor chart for guided math- help manage what the other kids are doing. lots of tips on this site for guided math!