Exact trig values is new to the GCSE 9-1 specification. This resource is to support pupils in providing summary notes or a revision resource. This resource has four different foldables; covering different aspects to do with exact trigonometric values and trig graphs. The four foldables are;
- Exact Trig Values; Pupils use the two triangles (one right angled and one equilateral) to determine the exact trig values using SOH CAH TOA. They will also need to use Pythagoras’ theorem to find the length of the hypotenuse.
- Trig Graphs: Pupils are required to recall and sketch the graphs of sin, cos and tan from -360° to 360° on the given axis.
- Exact Trig Values >90°; pupils use the exact trip values from the two triangles and use to calculate carefully chosen trig values e.g. sin 210°.
- Using Exact Trig Values; pupils use the trig values to complete sums of different trig values (therefore pupils need to be able to add/subtract fractions).
Foldables can be used as a revision or summary exercise at the end of a topic. As the answers are hidden pupils can use these to ‘test’ themselves or ask someone else such as a parent to test them.
I have included an A4 version for UK printers and a letter size version for US printers
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