Geometry Mission
Explore shapes, angles, symmetry, and the Pythagorean Theorem through interactive tools and guided lab investigations.
7 activities · Work through in order for a complete lesson arc
Angle Builder with Kid Protractor
Drag rays to build angles, classify as acute/right/obtuse/straight/reflex, overlay a protractor to measure, and play angle-matching challenges
Symmetry & Pattern Blocks Studio
Find lines of symmetry in shapes, create mirror drawings on a pixel grid, and explore pattern block compositions. Visual geometry for elementary students
Shape Classifier & Quadrilateral Family Tree
Classify 2D shapes by sides, angles, parallel lines, and symmetry. Explore the quadrilateral family tree with sorting games and true-or-false quizzes.
Polygon Properties Calculator
Calculate and visualize properties of regular polygons from 3 to 20 sides. SVG diagram with interior angles, diagonals, area, perimeter, apothem, and circumradius.
Pythagorean Theorem Explorer
Solve for any missing side with step-by-step math, see the visual proof with colored squares on each side, generate Pythagorean triples, and extend to 3D distance.
Angle Builder Lab
Build angles from 0° to 360° using a slider, classify each as acute, right, obtuse, straight, or reflex, and record data to discover the boundaries between angle types and the landmark turn angles.
Pythagorean Theorem Lab
Investigate the relationship between the sides of a right triangle. Adjust leg lengths, compute the hypotenuse, verify a² + b² = c², and identify Pythagorean triples by recording pairs and testing the rule.
Prove the theorem through area exploration.