11.9 Trigonometric Modelling
Term 3
Periodic behaviour · Sine and cosine functions · Fitting periodic models to data · [EXT] Set functions
Learning Objectives
PrintTrigonometric Modelling
- 1. Identify periodic behaviour in real-world contexts (tides, daylight, sound, rotating machinery).
- 2. Model periodic phenomena using $y = A \sin(B(x - C)) + D$ and $y = A \cos(B(x - C)) + D$.
- 3. Identify and interpret amplitude, period, mean (vertical shift) and phase shift.
- 4. Fit a sinusoidal model to data using technology.
- 5. Use a fitted model to predict and interpret values in context.
- 6. Investigate transformations of more general set functions and piecewise periodic functions.
- 7. Explore the tangent function.
Review Pack
Open review hub
Fluency Pack A — 40 questions
Fluency Pack B — 40 questions
Problem-solving — 12 unfamiliar tasks
Worked solutions (Pack A + B + problems)