### Trigonometry

#### Print based materials

Comparing numbers (part of module only)

• Comparing quantities of subtraction
• Comparing quantities by division (including percentages)
• Ratios (including ratios in squares, rectangles, circles & triangles)
• Rates

Trigonometry (Level B)

• Sine (including the sine ratio, the sine function, the inverse of the sine function, degrees, minutes and seconds, amplitude and period)
• Cosine (including the cosine ratio, the cosine function, the inverse of the cosine function, amplitude and period)
• Tangent (including the tangent ratio, the tangent function, the inverse of the tangent function, amplitude and period)

Trigonometric functions (Level C)

• Graphs of sine, cosine, and tangent functions
• Modelling using trigonometric functions (including amplitude, vertical shift, the period of trigonometric functions, the phase of trigonometric functions)
• Inverse functions
• Solving trigonometric equations

Trigonometry (Level D)

• Polar Co-Ordinates
• Trigonometric Identities and Multiple Angle Formulae
• Solving Trigonometric Equation
• Periodicity
• Amplitude
• Triangle Solution
• Compound Angles
• Solving Equations Involving Trigonometric Functions

#### Video based resources

• Introduction to trigonometry (printable handout)

This 20 minute video introduces:

• labeling triangles for trigonometry
• Pythagoras' Theorem
• trigonometric ratios
• worked examples using trigonometric ratios