For class pages, LMS, and blogs

Embed calculus visualizers

One iframe tag adds a live, draggable calculus visualizer to Google Sites, Canvas, Schoology, WordPress or anything else that accepts HTML. Free, no login for your students. Pick a widget page rather than copying every snippet from this catalog.

5 visualizers are ready. CalcLearn is visualizers first: start at widgets, with the Riemann sum as the default. Steps for class pages and LMS hosts, and a page written for AI assistants. The Riemann sums guide is the identity in words.

Every visualizer

Open a widget page for the iframe. This page exists for the embed-graphs query. The front door is /widgets.

• Tangent line tracerDrag a point along f(x), watch the tangent rotate, and see f'(x) draw itself dot by dot. An interactive that shows what a derivative actually is.
• Riemann sum sliderDrag the rectangle count from 1 to 200 and watch a left, right, midpoint, or trapezoidal Riemann sum converge to the exact integral as its error vanishes.
• Secant to tangentDrag h to zero and watch a secant line pivot into the tangent. See how the difference quotient becomes f'(a), the limit definition of the derivative.
• Solid of revolutionPick a region, watch it revolve into a 3D solid, and see the disk, washer, or shell volume integral build itself. Drag the bounds and check the volume.
• Related rates sceneDrag a 10 ft ladder's base or a cone tank's water level and watch a related-rates derivation recompute dy/dt and dh/dt at that exact state.