OpenStax Precalculus (2nd Edition)
Lesson Plan
Non-right Triangles: Law of Cosines
Goals / Objectives
Use the Law of Cosines to solve SAS (side-angle-side) triangles
Use the Law of Cosines to solve SSS (side-side-side) triangles
Recognize when to use Law of Cosines vs. Law of Sines
Solve applied problems using the Law of Cosines
Use Heron's formula to find the area of a triangle given three sides
Standards
8.2
Academic Vocabulary
Not in our source material
Materials
No slides or practice set for this standard yet
Remediation
Enrichment
This lesson’s brief has no Differentiation
Accommodations
Not in our source material
Anticipatory Set / Bell Work
Modeling
Check for Understanding
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Guided Practice
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Independent Practice
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