Here are some helpful sites:

Common Core Sheets
This site offers downloadable worksheets correlated to the Common Core Standards.

http://parcconline.org/ sample problems

http://njcore.org learning resources by standard

http://www.state.nj.us/education/assessment/es/njask/NJASKPres.pdf NJASK blueprint

http://www.state.nj.us/education/modelcurriculum/ Model Curriculum

http://www.corestandards.org/Math/Practice

http://www.state.nj.us/education/modelcurriculum/ela/