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This Solve for Unknown Angles—Angles and Lines at a Point lesson plan also includes:
- Congruence, Proof, and Constructions - Module Overview (PDF)
- Congruence, Proof, and Constructions - Module Overview (Doc)
- Solve for Unknown Angles - Angles and Lines at a Point (Doc)
- Solve for Unknown Angles - Angles and Lines at a Point (PDF)
- Solve for Unknown Angles - Angles and Lines at a Point (Doc)
- Assessment
- Answer Key
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How do you solve for an unknown angle? In this sixth installment of a 36-part series, young mathematicians use concepts learned in middle school geometry to set up and solve linear equations to find angle measures.
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CCSS:
Designed
Concepts
Additional Tags
Instructional Ideas
- Use this resource as a review assignment
- Print out the table of angle relationships for pupils to have as a resource
Classroom Considerations
- The lesson assumes that class members can fluently solve linear equations with rational coefficients
Pros
- Resource includes plenty of exercises for both guided and independent practice
- Explanation of processes leads to proof techniques used in later lessons
Cons
- No hands-on activity to engage students