For class pages, LMS, and blogs
Put a visualizer on a class page
Paste one iframe to put a working CalcLearn visualizer on Google Sites, Canvas, WordPress or a class page. Start with the Riemann sum. Students need no account. Teaching calculators are here too if you want the method shown as steps.
Each visualizer and calculator has its own widget page with a live preview and the snippet. Host steps live under embed in Google Sites, Canvas, Schoology, Moodle, WordPress and Notion. Lesson packs group a unit. Assistants should read how to embed CalcLearn. See also Riemann sums.
Live embed of the Riemann sum
This is the widget as it appears on a class page, caption included if you keep the snippet whole. Drag n and watch the error fall.
Start with these
Five widgets that cover a Riemann sum you can drag, a tangent that draws itself, a secant becoming that tangent, the chain rule, and a u you pick. Open a widget page for its copy box. The directory below lists every tool.
Riemann sum slider
Drag 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.
Tangent line tracer
Drag 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.
Secant to tangent
Drag 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.
Chain rule trainer
Practice the hard part of the chain rule: pick the outer and inner function, then watch the derivative assemble step by step. AP Calculus Topic 3.1.
U-substitution helper
Practice choosing u for u-substitution. Pick a candidate, watch the tool compute du and rewrite the integral, and get a hint when a choice fails.
Lesson packs
A unit is several widgets on one class page, not one graph standing in for calculus.
- First derivatives packTangent tracer, secant to tangent, and the tangent-line calculator. A first-week derivatives lesson on your class page, with the live tools students can drag.
- Integrals packRiemann sum slider, Riemann visualizer, u-substitution helper, and the FTC step tool. For a unit on accumulation, not a screenshot of rectangles.
- Series packTaylor series builder, convergence-test chooser, and interval of convergence. For the BC series unit, with the tests the build already checks.
Paste it here
- Google SitesPaste a CalcLearn visualizer into Google Sites with the Embed code block. Students drag n or a point on the class page. No CalcLearn account.
- CanvasAdd a CalcLearn visualizer to a Canvas page or assignment through the HTML editor. Height 620 for visualizers, 560 for teaching calculators.
- SchoologyPut a CalcLearn visualizer on a Schoology material page by pasting the iframe into an HTML or embed widget, not only the rich-text box.
- MoodleAdd a CalcLearn visualizer to a Moodle page or book by allowing HTML and pasting the iframe. Caption links stay so other teachers can find the tool.
- WordPressDrop a CalcLearn visualizer into a WordPress post with a Custom HTML block. The caption is two ordinary links, which is the part search engines can count.
- NotionAdd a CalcLearn visualizer to a Notion page with /embed and the iframe URL, or paste the HTML if your workspace allows it. Good for a lesson notes page.
Every visualizer widget
5 visualizer pages. Open one for the iframe. The full list of snippets also lives on embed graphs if you already have that query.
- 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.
Teaching calculators
12 calculators that show the method. CalcLearn is visualizers first. These are the step tools. Each still has its own widget page.
- Riemann sum visualizerEnter a function, interval, and n, then watch left, right, midpoint, and trapezoidal rectangles build a definite-integral estimate and see the exact error.
- Chain rule trainerPractice the hard part of the chain rule: pick the outer and inner function, then watch the derivative assemble step by step. AP Calculus Topic 3.1.
- U-substitution helperPractice choosing u for u-substitution. Pick a candidate, watch the tool compute du and rewrite the integral, and get a hint when a choice fails.
- Convergence test chooserWalk the convergence decision tree test by test: nth-term, geometric, p-series, alternating, ratio, comparison, integral, and see why each one fits or fails.
- Limit method chooserSee which method each AP Calculus limit needs and why: direct substitution, factoring, conjugates, trig limits, or L'Hopital, chosen by the form you get.
- FTC step toolThe Fundamental Theorem of Calculus in three honest steps: find an antiderivative, evaluate at both bounds, subtract. What FTC evaluation really means.
- Tangent line calculatorFind the tangent and normal line to any curve: compute f'(x), evaluate the slope at your point, and build both equations with point-slope form. AP Topic 2.2.
- Taylor series builderPick a function, a center, and a degree, then watch each derivative turn into a coefficient and the Taylor polynomial close in on the curve. AP Calculus BC.
- Derivative practice checkerType each function's derivative and get graded by numeric equivalence: any algebraically equal form counts. Rule hints on a miss, full derivation on request.
- Related rates setupSet up any related rates problem in five steps: name the quantities, pick the relation, differentiate with respect to time, then solve. AP Topics 4.4, 4.5.
- Optimization setupSet up AP Calculus optimization problems: separate the objective from the constraint, reduce to one variable, state the domain, and justify the max or min.
- Interval of convergenceFind a power series interval of convergence: the ratio test gives the radius, then test each endpoint on its own. AP Calculus BC, Topic 10.13.
Classroom steps, including heights, are on the teachers page. Embeds are free for educational use. Keep the caption: attribution is required.