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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