K12worX
Help
Grade 4-12 Math/Grade 3 Math
Measurement and Data(md)/Geometric measurement: understand concepts of area and relate area to multiplication and to addition(md-c)
🎯

Learning Goal

‹9 of 9 in this cluster›

Recognize area as additive

3.MD.C.7.d
Review first:
  • Multiply side lengths to find areas of rectangles

Slides

Step through the lesson, or watch it as a narrated video

Slides

In development

Not yet available • Check back soon!

Was this lesson helpful?
Report a problem with this page
Previous←Use tiling to show that the area of a rectangle with side lengths a and b + c equals the sum of areas
Up nextGeometric measurement: recognize perimeter as an attribute of plane figures and distinguish between linear and area measures→

Curriculum materials by K12worX, licensed under CC BY 4.0. You may share and adapt them, including commercially, with credit.

Common Core State Standards © 2010 National Governors Association Center for Best Practices and Council of Chief State School Officers. Used under the CCSS public license.

Questions or problems?

We read every message. Contact us →

How it worksReport a problemPrivacyTerms

© 2026 K12worX