This is an excellent resource (one of my fav's) looking at all aspects of circular graphs.
Firstly, looking at how we decide on labelling circular graphs and then specific example questions. Looking at more complicated finding the coordinates when circular and linear graphs meet. With a look at how to use completing the square or the formula to solve.
This comes with very clear teaching slides, a relevant starter looking at linear graphs, keywords, learning objectives, differentiated and levelled questions WITH ANSWERS and plenary. This also comes as a part of a sequence of lessons on circular graphs, so do check out the other following lessons in the series.
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