About This Lesson
<p>Rectangle PQRS has X and Y on the edges. Triangles PQY, YRX and XSP have equal areas. Prove X and Y divide the sides of PQRS in the golden ratio.</p><p>Other topics covered: Numbers</p>
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Another nice lesson idea from n-rich, this link is on the topic of triangles and the golden ratio. I like these lesson ideas as they teach the topic in an interesting and different way and come with a full set of teacher notes, hints for pupils and solutions for ease of planning. Would make an ideal investigation lesson as a paired or group work task.