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Basic Trigonometry - Sides (Animated PowerPoint).
This resource demonstrates, step-by-step, how to use ‘SOH CAH TOA’, with a question covering each (three slides in total).
During another year of tutoring, I have constantly been reminded of how so many students struggle with the basics. These basics obviously provide the foundation to move onto more complex topics and knowledge of them is absolutely essential in building confidence and belief in a student’s ability in the subject. Educational establishments must begin to realise this and ensure that the foundations are absolutely secure and solidly embedded before moving on.