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The Angle Measure of an Arc Lesson PlanThe Angle Measure of an Arc Lesson Plan
Publisher
EngageNY
Resource Details
Curator Rating
Educator Rating
Not yet Rated
Grade
9th - 10th
Subjects
Math
1 more...
Resource Type
Lesson Plans
Audience
For Teacher Use
Duration
45 mins
Instructional Strategies
Guided Practice
1 more...
Language
English, Arabic
Lesson Plan

The Angle Measure of an Arc

Curated and Reviewed by Lesson Planet
This The Angle Measure of an Arc lesson plan also includes:
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  • The Angle Measure of an Arc (Doc)
  • Geometry Module 5: Teacher Materials
  • Geometry Module 5: Studnet Materials
  • Geometry Module 5: Copy Ready Materials
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How do you find the measure of an arc? Learners first review relationships between central and inscribed angles. They then investigate the relationship between these angles and their intercepted arcs to extend the Inscribed Angle Theorem to arcs.

28 Views 11 Downloads
CCSS: Designed

Concepts

arcs, angle measurement, inscribed angle, central angles

Additional Tags

math

Instructional Ideas

  • Use the lesson to introduce angle measures of arcs
  • Provide pupils with a diagram on which they can label relevant parts of a circle

Classroom Considerations

  • Lesson assumes knowledge of central and inscribed angles from previous lessons

Pros

  • Teacher resource includes scaffolding and differentiation tips, including for English language learners
  • Problem set includes exercises with central and inscribed angles in different situations

Cons

  • Material may seem repetitive to some learners

Common Core

HSG-C.A.1 MP3

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This activity uses Cabri Jr. to explore the relationship between inscribed and central angles subtended from the same arc of a circle.
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Khan Academy: Geometry: Inscribed and Central Angles

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Khan Academy: Circles: Inscribed and Central Angles

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Showing that an inscribed angle is half of a central angle that subtends the same arc.
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