3 lessons, taking students through a step by step process of what is a trig ratio, to how to what buttons to use on a calculator, to problem solving.
Includes; keywords, why we use trig, correct labeling of sides, using SOH/CAH/TOA and related formulae.
Plus worked examples, practice questions, exam style questions, and a separate lesson on Angles of Elevation and Depression.
- To be able to use a calculator to find trigonometric ratios. (grade 5)
- To be able to recognise which trigonometric ratios to use. (grade 5)
- To be able to use trigonometric ratios to solve problems. (grade 5/6)
This interactive version allows students to move elements around to label sides, choose correct ratio and work through the steps to solve problems.