Articles

Writing that earns its place in your week.

Short, sourced pieces on calculus teaching — what is changing, what works, and what is still unresolved. Every piece names where its facts come from.

Tools · 8 min read

Free calculus tools: a tour by the job you need done

Sixteen tools that cost nothing to use, sorted by what you actually need — graph it, check an answer, give the class something to do, have it explained again. One sourced line each, and nothing ranked.

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Practice · 6 min read

Handwritten FRQs in a digital world

AP Calculus is a hybrid digital exam: the questions are viewed in Bluebook, and the free-response answers are handwritten in a paper booklet that is posted off to be scored. What College Board publishes about how it works — and the classroom habits that follow.

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Pedagogy · 6 min read

Five calculus ideas students keep mixing up

A limit is not the value of the function, continuous is not differentiable, the Mean Value Theorem is not Rolle’s. Five distinctions the shorthand drops, each sourced and each with a one-sentence fix.

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New teachers · 5 min read

Teaching AP Calculus for the first time: the two-minute guide

Getting your first AP Calculus section is normal, not a crisis. The one document to read first, the six steps College Board itself lists, and where the free material lives.

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AP exam · 5 min read

What actually changes in the AP Calculus exam in 2027

The course content is not moving; the shape of the exam is. What College Board has published about the new multiple-choice count and timing — and the one thing it has not made clear.

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Tools · 4 min read

Desmos on Bluebook: what students can and cannot use

The built-in calculator is allowed — but only in the calculator-required parts of the exam. Where it turns on, where no calculator can go, and what that means for practice.

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