Critical Thinking and Problem SolvingArea Builder
Area Builder
PhET Interactive Simulations · CU Boulder
Online enrichment: build shapes from unit squares to feel how area works. Offline learners can skip this safely.
Try this:
Online enrichment: build shapes from unit squares to feel how area works. Offline learners can skip this safely.
What the simulation shows
- By the end of the lesson the learner can calculate the area of rectangles, triangles, parallelograms, circles and sectors.
- By the end of the lesson the learner can find the surface area of prisms and cylinders from their nets.
- By the end of the lesson the learner can estimate the area of irregular shapes.
Audio narration — reads aloud, works offline
This self-contained HTML5 simulation is bundled inside the delivered package and runs fully offline (no external URLs).