ACT Math
Lesson Plan
Graphs of sin, cos, tan (amplitude, period, phase shift)
Goals / Objectives
Sketch the base graphs of y = sin(x), y = cos(x), and y = tan(x) by plotting key points (intercepts, maxima, minima, asymptotes)
Identify amplitude, period, phase shift, and vertical shift from the general form y = A sin(Bx + C) + D (and analogous cos/tan forms)
Graph a transformed sinusoidal function by applying changes to amplitude, period, phase shift, and vertical shift systematically
Read a graph to determine its amplitude, period, midline, and phase shift
Write an equation in the form y = A sin(Bx + C) + D (or cos equivalent) that matches a given graph
Standards
F 705. Match graphs of basic trigonometric functions with their equations F 704. Exhibit knowledge of unit circle trigonometry
Academic Vocabulary
Not in our source material
Enrichment
This lesson’s brief has no Differentiation
Accommodations
Not in our source material
Anticipatory Set / Bell Work
Modeling
Check for Understanding
This lesson’s brief has no Formative Assessment or Assessment Ideas
Guided Practice
Independent Practice
Homework
Pacing
This lesson’s brief has no Pacing