Math Labs
Projector manipulatives for a short lesson. Drag a model, read the equation, and stop when the idea is clear. Free, no login.
Labs
Interactive Fraction Wall
Tap fraction bars that line up to one.
Grades 3–6 on a projector or iPad
Open toolArea vs Perimeter Tiles
Paint squares. Compare area and perimeter.
Grades 3–5 on a projector or iPad
Open toolPythagoras Lab
Drag a right triangle. Watch a² + b² = c².
Grades 7–9 on a projector or iPad
Open toolUnit Circle Lab
Drag the point. Read sine and cosine.
Algebra 2 and precalculus on a projector or iPad
Open toolSine from Circle Lab
Unwrap the circle into a sine wave.
Algebra 2 and precalculus on a projector or iPad
Open toolSlope–Intercept Explorer
Drag the line. Read y = mx + b.
Algebra 1 on a projector or iPad
Open toolVenn Diagram Lab
Shade the sets. Read a correct formula.
Grades 5–8 on a projector or iPad
Open toolFor teachers
Classroom math labs — new tools + tell us what to build.
Free. An email, and an optional note about the lab you want next. The tools stay open with no account.