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Curriculum

01 · Right triangles + the unit circle

Right-triangle definitions of sin / cos / tan
The unit circle (animated)
Radians vs degrees — when to use which

02 · Graphs + transformations

sin / cos / tan graphs
Amplitude, period, phase shift

03 · Identities

Pythagorean + reciprocal identities
Sum / difference / double-angle formulas

04 · Applications

Solving triangles (law of sines + cosines)
Why trig powers wave physics + signal processing

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Right triangles + the unit circle

Right-triangle definitions of sin / cos / tan

Right-triangle definitions of sin / cos / tan

(This lesson is being authored. Tori-Wizard can fill it in: visit /teach/trigonometry → "Open in Wizard".)

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