Interactive resource
Rectangle area
Geometry. Area = length × width — tile with unit squares. Free interactive GeoGebra resource — adjust parameters in the browser.
Overview
Area = length × width — tile with unit squares.
Explanation
Rectangle area = length × width.
Meaning: cover with 1×1 squares; the count is the area.
Builds the idea that area multiplies two lengths.
How to use
Drag the corner to change length and width; count unit squares vs S = a × b.