🖩 Trigonometry 🖩 Calculator Brain Method 🖩

An extremely different approach to teaching trigonometry that allows high-ability students to truly understand what the sine function is doing. This tried-and-tested guide shows students how to scale up and down right-angled triangles produced by a unit circle in order to solve any trigonometry problem. This is for students and teachers who don't just want to memorise SOHCAHTOA but really want a deeper understanding of trigonometry. Anyone who has had to apply trigonometry in real-life situations such as engineering or computer game design will know that SOHCAHTOA is not appropriate for our high-ability students. This method is advocated by MEI lecturer Tomi Owens, among others. Not only does it develop a deeper understanding of trigonometry but it allows students to practise Pythagoras and complex enlargements. Be warned, this method may only be suitable for the most able of students.

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