Drag, rotate and adjust interactive models for geometry, algebra and calculus — built to make the concept click, not just show the answer.
Each tool is a live, adjustable model — not a static picture.
Rotate 3D shapes, drag vertices, and watch angles and areas update as the shape changes.
Adjust a coefficient with a slider and see the graph reshape in real time — no re-plotting by hand.
Watch a tangent line move along a curve, or see area-under-the-curve fill in as you shift the bounds.
Spin the unit circle and watch sine, cosine and tangent ratios update as the angle changes.
Add or remove data points and see mean, median, mode and spread recalculate in real time.
Roll dice and draw cards to compare experimental outcomes against theoretical expectation.
Reading that a sphere's volume changes with radius is one thing. Dragging the radius and watching it happen is another — that's the gap every tool here is built to close.
Open any of these directly, or browse the full gallery.