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Pre-calculus pulls together everything calculus will assume you already know. Deb White spent forty years teaching it at California community colleges, and she makes the jump in abstraction feel like a series of small, manageable steps.
Pre-calculus isn’t one new topic — it’s several familiar ideas (functions, graphing, exponents) returning at a higher level of abstraction, plus a couple of genuinely new ones (trig identities, sequences) layered on top. Students who did fine in Algebra II often hit this course and feel like the ground shifted under them. It didn’t — the expectations just grew up.
Across forty years teaching at California community colleges, Deb has taught this exact bridge to calculus more times than she can count. She connects every new idea here back to the algebra you already trust, and uses a shared whiteboard so every graph and identity is built together, in real time.
A full pre-calculus course, start to finish — tap any topic for a plain-English explainer.
Domain, range, transformations — reading a function’s whole behavior at a glance.
End behavior, zeros, and asymptotes — what the graph does and why.
Growth, decay, and the inverse relationship that ties them together.
The unit circle, graphs of sine and cosine, and the identities worth memorizing.
Arithmetic and geometric patterns, and what it means to sum infinitely many terms.
Parabolas, ellipses, and hyperbolas as one family — plus the basics of vectors.

In Deb’s words
Students arrive at pre-calculus expecting a wall of brand-new material, and that expectation makes the course feel harder than it is. Almost everything here is something you already know, asked about more generally — a function instead of one equation, a repeating pattern instead of one term, an angle that can be any size instead of just the ones that fit in a triangle.
Math is not a spectator sport. I’ll show you a worked example, then hand you a similar one and stay right beside you while you work through it — getting stuck, finding the next step, fixing it — until it’s yours. And I start by finding the gap, because in pre-calculus the thing blocking you is usually one earlier idea that never quite solidified, not the whole subject.
Book a free 15-minute intro call.
Tell Deb what class you're in and where pre-calculus went sideways.
Get a plan.
She'll pinpoint the gap and map out where to start.
Start your sessions.
Meet online, one-on-one, on your schedule. Book and pay right here. No contracts.
Book a free 15-minute intro call — no commitment, no pressure.