Trig Ninja
A modern, innovative teaching program for the NESA Stage 5 Mathematics topic, Trigonometry A.
Our RationaleProgram
Mind Map
Our plan/overview of the Trigonometry topic.
Rationale
Our pedagogical approach, what the topic covers, and why is Trigonometry important to teach
Syllabus Outcomes and Descriptors
The syllabus links.
Prior Learning, Potential Misconceptions and Difficulties
Issues affecting student learning of Trigonometry.
Lessons
Lesson 1: Introduction to Trigonometry
Students define Trigonometry, and describe properties of a right-angled triangle.
Students identify the use of right angled triangles in the context of the real world.
Students identify the name of the sides in a right-angled triangle for a given angle.
Lesson 2: Introduction to Trigonometric ratios
Students define Trigonometric ratios, and identify the three ratios – sine, cosine, and
tangent ratios
Lesson 3: Trigonometric ratios in similar right-angled triangles
Students compare trigonometric ratios for a given angle in similar right-angled triangles,
and verify that they are equal for corresponding angles.
Lesson 4: Finding the length of an unknown side in a right-angled triangle
Students will find the lengths of unknown sides in right-angled triangles with a given
angle using digital tools such as a calculator
Lesson 5: Finding unknown angles using trigonometry
Students use trigonometric ratios sine, cosine and tangent, to find the size of unknown
angles in right-angled triangles including in degrees and minutes.
Lesson 6: Solving practical problems involving trigonometric ratios
Students learn to interpret practical problems, and illustrate appropriate diagrams to
represent information given in questions