Lesson 140 minutes
Introduction to Trigonometry
Mathematics • Trigonometry I
📚 Curriculum Context
This lesson implements: NCDC S3 Mathematics - Topic 1: Trigonometry I
View Full Curriculum GuidanceOverview
Learners are introduced to trigonometry, learn to identify and label the parts of a right-angled triangle (hypotenuse, opposite, adjacent), and discover that similar triangles with the same angles have constant side ratios.
Lesson Details
- Subject:
- Mathematics
- Grade:
- S3
- Term:
- Term 1
- Topic:
- Trigonometry I
- Lesson:
- 1 of 15
- Duration:
- 40 minutes
Curriculum Reference
NCDC Lower Secondary Mathematics Syllabus (2019), S3 Topic 1 (Trigonometry I)
Keywords
trigonometryright-angled trianglehypotenuseoppositeadjacentratiossimilar triangles
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