Geometry Lab

Make sense of geometry by looking, trying and explaining. Geometry Lab offers learners aged 13 and up 49 topics with visual questions, clear feedback and opportunities to try again. Explore points and segments, angles, triangles, circles, transformations, measurement, geometric reasoning and probability. Use diagrams and accessible answer controls to connect what you see with what you know. Practice a topic, then choose Assess to check your understanding. Save your place with a short learner ID and an optional name. Sign in with that ID on another device to resume the same course when online. Lessons are bundled in the app. A learner already saved on a device can keep working offline; online saving and teacher rosters need a connection. Teachers with an existing course login can review progress and give learner IDs familiar names. Geometry Lab is a standalone app. Its learner IDs, progress and teacher roster are separate from Algebra 1 Lab and Algebra 2 Lab. No ads or in-app purchases.