Chapter 8: Trigonometric Equations and Applications
Overview 2 minute Video: nothing too flashy but does cover some key concepts with clearity
Trigonometric Graphing: The website from Illuminations at NCTM allows students to instantly change the amplitude, period, and phase shift to see the changes to sine, cosine, tangent, cosecant, secant, and cotangent functions. This, though simple and similar to TI-84, is easier to quickly pick up patterns.
Deriving the Graph for Sine and Cosine: awesome little interactives showing how the curve forms as you move around the circle.
unit-organizer-for-precalc (Chapter 8)