Area Builder

Build shapes with colorful blocks and explore the concepts of area and perimeter! Play the game to find the area of funky figures or create your own shapes with specific dimensions.

  • In Area Builder, use colorful blocks to create shapes and investigate the relationship between area and perimeter. Count unit squares to find the area of simple shapes or decompose irregular shapes into smaller, regular ones like rectangles and triangles. Experiment with building shapes of specific area or perimeter, and explore how scaling a shape affects these properties. Whether you're solving puzzles or designing your own shapes, Area Builder offers a fun, interactive way to master the concepts of area and perimeter!

  • Link to curriculum

  • PhET Interactive Simulations, University of Colorado Boulder