WQOW-TV in Eau Claire produced this very helpful two-part series on the Common Core State Standards, which provides an excellent introduction to what they're all about:
Family Resources for Literacy and Mathematics Support
Find resources developed by Wisconsin DPI to support your child's mathematics and literacy learning and development here.
Additional State and National Resources
Top 10 Things Parents Need to Know About the Common Core State Standards
PTA Parent Guides to the Common Core State Standards (Username: pta user Password: global)