I normally start off looking at radians after I have taught trigonometric graphs, but before teaching trig equations and identities. 18 slides + worksheet.
This is an introduction to radians and covers very clearly what radians are, with plenty of custom animation on 5/6 slides to explain in detail. In then looks at converting degrees into radians and vice versa with plenty of excellent teaching slides and activities to assess understanding. I have also included an excellent worksheet with answers contained. The lesson also includes a starter, plenary and learning objectives.
This lesson then leads on to the second lesson on radians, which I also recommend purchasing.
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