This pdf file contains information sheets for all of the topics included in the Math Common Core Standards for 3rd grade. Each standard and objective is explained briefly in child- and parent-friendly language. These can be sent home with students as study guides or given to parents as a reference guide to use when helping their children at home.
There are several "What are 3rd graders supposed to know about..." pages included in this file:
*Addition & Subtraction
*Multiplication & Division
*Measurement & Data
*Area & Perimeter