NEXAcademy Hub
Visionbefore solution.
We teach AP Calculus, AP Physics, QCAA Physics, and SAT Math, helping international-curriculum students in Taiwan go from “I don’t get it” to “I can use it.”
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01 / 05 — AP Calculus AB / BC
Slice thinner. Get closer to the truth.
From limits to integrals and series, with solid Pre-Calculus foundations.
Scroll: the bars go from 4 to 64, and their sum closes in on the area under the curve.
02 / 05 — AP Physics 1
Energy never vanishes. It changes form.
Mechanics and core ideas, building a physicist’s way of thinking.
Drag the bob and let go: kinetic K and potential U trade places while the total stays fixed.
03 / 05 — AP Physics C
Invisible fields, made visible.
Mechanics and Electricity & Magnetism, calculus-based, for students ready for depth.
Field lines leave the positive charge, return to the negative one, and never cross. Drag sideways to rotate.
04 / 05 — QCAA Physics
Two waves meet: some points double, some cancel.
Aligned with the Queensland syllabus and its assessment requirements.
Ripples from two sources add together. That is interference. Drag sideways for another angle.
05 / 05 — SAT Math
One line. How many answers?
Targets the exam’s question types and pacing, strengthening algebra, functions, and data analysis so you reliably score what you know.
As the line moves, the discriminant Δ decides how many intersections there are. The numbers are computed live.
Orbit Lab
Planets orbit a focus, not the center.
Drag to rotate, tune the eccentricity, then switch on Kepler’s second law to see why equal times sweep equal areas.
Our mark sits at the focus: a planet orbits the focus, not the center of the ellipse.

