Interactive
Amby Duncan-Carr

Amby's Math Resources: Finding the Area of a Rectangle

For Students 3rd - 7th Standards
The tutorial investigates area and how it is the total number of square tiles covered. Examples and practice problems are included.
Interactive
National Council of Teachers of Mathematics

Nctm: Illuminations: Factorize

For Students Pre-K - 1st Standards
This resource investigates the concept of factors by creating rectangular arrays. The interactive tool allows learners to relate area to multiplication.