CALCULUSin motion

Short animated explainers, one idea each. Here is the plan, in the order that makes each one easier than the last. Turn on the sound and tap the topics.

Meet the five

Tap a topic to see its opening question, the big idea and where it stands.

Topics up close

The same five side by side. Scroll sideways and tap a card for its note.

Meters are planning estimates for how hard each topic is to follow, how much the animation carries it, and how many formulas it needs. They are not measured data.

How the series builds

Every topic uses the one before it. Limits come first because continuity, derivatives and integrals are all defined with them. Watch the five circle the same center.

Episode 1 · LimitsStart hereThe hole in the curve, the approach from both sides, and the ε–δ box.
Episode 2 · ContinuityNextFill the hole and the pen never has to lift.
Episode 3 · DerivativesComing upA secant line turns into the tangent as h shrinks to zero.
Episode 4 · IntegralsComing upRectangles multiply until they fill the area exactly.
Episode 5 · SeriesComing upInfinitely many terms that add up to a single number.

No release dates are set. The order is the plan and can change.

Later

Ideas on the shelf. Nothing here is scheduled. We will plan these after the five.

Unit circle

Why sin and cos rise and fall like a wave.

Bell curve

Why so many things in nature pile up in the middle.

Matrices

Stretching and turning a whole grid at once.

Logarithms

The undo button for exponential growth.

Limit or Beyond?

Five topics, one idea per short. Which opening question do you want answered first?