Lesson 240 minutes
The Unit Circle
Mathematics • Trigonometry I
📚 Curriculum Context
This lesson implements: NCDC S3 Mathematics - Topic 1: Trigonometry I
View Full Curriculum GuidanceOverview
Learners construct and explore the unit circle, plot points for different angles, measure x and y coordinates, and discover how the unit circle creates right triangles with hypotenuse = 1, preparing for sine and cosine definitions.
Lesson Details
- Subject:
- Mathematics
- Grade:
- S3
- Term:
- Term 1
- Topic:
- Trigonometry I
- Lesson:
- 2 of 15
- Duration:
- 40 minutes
Curriculum Reference
NCDC Lower Secondary Mathematics Syllabus (2019), S3 Topic 1 (Trigonometry I)
Keywords
unit circlecoordinatesanglesradiusoriginright trianglemeasurement
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