342A Unit Plan Trigonometry (Pre-Calculus 12) 

Below is a summary of three detailed lessons, including fun activities along the way to support why I chose this topic!

Lesson #1:  Acute and Obtuse triangles

I start with explaining if both the hour and the minute hand on a clock read 3:15 (AM/PM is irrelevant), then the clock hand counting seconds actually ticks "backwards" to a certain number (i.e. 2, 1, 12 etc.)  Once it reaches, we draw a vertical/straight line down from it's tip, to 3:15.  I mention that

Lesson #2:  Sine, Cosine, Tangent

Here we explain 'SOH-CAH-TOA' for a triangle,


Lesson #3:  Problem solving in words

I would talk about tidal patterns (so high versus low), and explain how sinusoidal functions help navigators determine whether or not it is safe to dock their vessel.