The Everything parent's guide to Common Core math: grades 6-8 : understand the new math standards to help your child learn and succeed / Jamie L. Sirois and Adam A. Wiggin.
The Common Core state standards -- 6th grade Common Core standards -- 7th grade Common Core standards -- 8th grade Common Core standards.
Summary
Features examples and exercises thjat correspond to each standard, so you'll have the confidence you need to help your dids succeed and thrive in the new school standards.