A basic intro to Trigonometry using the concept of similar triangles. It is designed to build confidence with 2nd and 3rd set pupils. Having trialled it in lockdown with my classes, I hope it covers every possible problem but feel free to let me know if it doesn’t. Most of my pupils managed to teach themselves from this with very little extra intervention from me and could then tackle worksheet questions on it. It leads on nicely to exact Trig values.
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