Aimed at SL IB but easily applicable to KS3 & 4 groups.
Presentation is focused on 2 aspects, taking a trig result and using that to show what the other ratios would be (without a calculator). Secondly it looks at elevations and depressions.
problems include having to recall without a calculator the values of common angles.
questions and discussion points built into the presentation
answers are included
feel free to modify and improve
Hope you enjoy and please leave feedback
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