Common Core
3.MD.D.8
3 lessons teach this standard. Every lesson is interactive, and every one prints as a worksheet with a separate answer key.
Grade 3 Math · Chapter 4 · Lesson 5
The distance all the way round.
Grade 3 Math · Chapter 4 · Lesson 6
Telling Area and Perimeter Apart
Two different questions about the same shape.
Grade 3 Math · Chapter 4 · Lesson 7
Rectangles can share an area and look nothing alike.