Great resource for some CC aligned problem solving.

If you teach middle or high school math - I highly recommend spending a chunk of time looking through the lessons. They are amazing! All lessons use common core standards with real world problems.

A Guide to the 8 Mathematical Practice Standards |

Semi-Homemade Valentines for Busy Teachers

I love the heading "mathematicians say." A Guide to the 8 Mathematical Practice Standards (Breaks down the common core math standards in plain language)

Common Core:  5 Steps to Becoming a Common Core Ninja

How to become a Common Core Ninja! Helpful steps to incorporating the Common Core into your teaching, as well as where to find resources and collaboration efforts.

Illustrative Math Project

Illustrative Mathematics provides guidance to states, assessment consortia, testing companies, and curriculum developers by illustrating the range and types of mathematical work that students experience in a faithful implementation of the CCSS.

Would You Rather? | Asking students to choose their own path and justify it- This site is awesome!

Would You Rather have 1 of 8 slices from a pizza OR 1 of 10 slices from a pizza? Whichever option you choose, justify your reasoning with mathematics.

Tap Into Teen Minds- Three Act Math Tasks CC aligned

Tap Into Teen Minds - ideas for math teachers Ont curriculum based on Dan Myers 3 act lessons

CCSS Math Lessons for every standard k-12. An absolute must bookmark!

What are Common Core Standards?: CCSS Math - A Wonderful Collection of Resources for Every Standard

Free Technology for Teachers: 5 Online Tools That Help You Align Lessons to Common Core Standards

5 Online Tools That Help You Align Lessons to Common Core Standards

7th Grade | The Utah Middle School Math Project- GREAT RESOURCES!

Michele Whaley - Some ideas for final assessments from a variety of teachers in Anchorage.

Great collection of CC aligned math resources.

Common Core resources from the state of New York. Excellent, well-developed curriculum exemplars designed by teachers as well as a common core video series.

CC Math Model Units by IL State Board of Ed

The curriculum units for Illinois schools. It is a nice format. Will not include standards that CA has added. Also, their course offerings are different (Math rather than Alg Geo, etc.

Thousands of online activities mapped to the CCSS

Economics Topics - Fourth Grade Social Studies Standards, Grade Level Help, Internet 4 Classrooms Internet resources to prepare for Social Studies state assessment