Grade 11 · Mathematics · Measurement
Trigonometry and the unit circle
Extend trigonometry beyond right-angled triangles using the sine and cosine rules, the unit circle, radian measure and the graphs of sine and cosine.
Awaiting educator review. This material was drafted by our content team with AI assistance and is waiting for review by a qualified educator. Please check it suits your child before using it. Created 10 October 2026.
These lessons were written around Australian Curriculum strands and matched to US grades by age (Kindergarten is the first year). They are not aligned to the Texas Essential Knowledge and Skills (TEKS), and some use Australian spelling, metric units or Australian dollars, so check them against your own curriculum.
This topic is currently an outline — a full lesson with worked examples and practice questions is on our list. In the meantime you can build a lesson plan template for it, or find related worksheets.