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Inscribed Angles in Circles: Lesson Instructional VideoInscribed Angles in Circles: Lesson Instructional Video
Publisher
CK-12 Foundation
Resource Details
Curator Rating
Educator Rating
Not yet Rated
Grade
9th - 12th
Subjects
Math
1 more...
Resource Type
Instructional Videos
Media Length
5:55
Audiences
For Teacher Use
1 more...
Duration
10 mins
Instructional Strategy
Direct Instruction
Technology
Video
Year
2013
Usage Permissions
Fine Print
Instructional Video

Inscribed Angles in Circles: Lesson

Curated and Reviewed by Lesson Planet
This Inscribed Angles in Circles: Lesson instructional video also includes:
  • Inscribed Angles in Circles:Examples
  • Join to access all included materials

Circle the angles and intercept the arcs. The video introduces three theorems relating to inscribed angles in circles. Using drawings, the segment of a playlist on geometry illustrates the measure of angle along with theorems about two angles intercepting the same arc and an angle intercepting a semi-circle.

5 Views 2 Downloads
CCSS: Adaptable

Concepts

inscribed, inscribed angle, arcs, circles, angle measurement

Additional Tags

math

Instructional Ideas

  • Create a graphic organizer to capture the relationship between arc measures and the measure of inscribed angles
  • Ask pupils to develop proofs of the theorems

Classroom Considerations

  • Assumes the class understands arc measurement
  • This video is hosted on YouTube

Pros

  • Contains a link to other inscribed angle resources
  • Shows the necessary arithmetic for the examples

Cons

  • None

Common Core

HSG-C.A.2 MP3 MP6

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Right angles, acute angles, obtuse angles, central angles, inscribed angles: how many types of angles are there? Learners first investigate definitions of inscribed angles, central angles, and intercepted arcs. The majority of the...
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The Angle Measure of an Arc

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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...
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Lesson Plan

Inscribed Angle Theorem and Its Applications

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Inscribed angles are central to the lesson. Young mathematicians build upon concepts learned in the previous lesson and formalize the Inscribed Angle Theorem relating inscribed and central angles. The lesson then guides learners to prove...
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Lesson Plan

Arc Length and Areas of Sectors

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How do you find arc lengths and areas of sectors of circles? Young mathematicians investigate the relationship between the radius, central angle, and length of intercepted arc. They then learn how to determine the area of sectors of...
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Lesson Plan

Angles, Arcs, and Segments in Circles

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Investigate relationships between angles, arcs, and segments in circles. Pupils use geometry software to discover the relationships between angles, arcs, and segments associated with circles. Class members use similar triangles to...
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Lesson Plan

Arcs and Angles

West Contra Costa Unified School District
Noah didn't construct this kind of arc. High school scholars first explore how angles can be formed in circles. They then learn relationships between angles and arcs by conducting an exploratory activity where they position and draw arcs...
9th - 12th Math
Instructional Video

Inscribed Angles of Circles

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Relationships in circles build from the many connections made throughout the geometry course. The instructor in the video explains these connections as she builds the concept of inscribed angles. Using examples, the narrator highlights...
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CCSS: Adaptable
Instructional Video

Degree Measure of an Arc

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Circular patterns and movement are commonplace in our world. Young mathematicians begin their study of circles with instruction on finding the degree measure of both major and minor arcs. Examples focus on the arc in relation to the...
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Instructional Video

Khan Academy: Geometry: Inscribed and Central Angles

Khan Academy
Proof that the measure of an inscribed angle is half the measure of a central angle when the angles intercept the same arc. [14:16]
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CCSS: Adaptable
Handout

Ck 12: Geometry: Arcs and Angles Study Guide

CK-12 Foundation
This study guide on arcs and angles covers key vocabulary, arc measurement in degrees and radians, congruent arcs, bisecting arcs, and the angles on, inside, and outside a circle. Also covers formulas and theorems. It is available for...
9th - 10th Math
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