Access Point #: MAFS.912.G-C.1.AP.2a (Archived Access Point)


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Identify and describe relationships among inscribed angles, radii and chords.

Clarifications:

Essential Understandings

Concrete:

  • Identify inscribed angles, radii, and chords using a model.
  • Create inscribed angles, radii, and chords (e.g., using a mat and spaghetti, popsicle sticks).
  • Describe the characteristics of an inscribed angle, radii, and chord (verbal, written, or picture).
Representation:
  • Identify inscribed angles, radii, and chords using pictures or geometry software.
  • Create inscribed angles, radii, and chords using pictures or geometry software.
  • Describe the similarities and differences between inscribed angles, radii, and chords.
  • Identify the similarities and differences between inscribed angles, radii, and chords.

Number: MAFS.912.G-C.1.AP.2a Category: Access Points
Date Adopted or Revised: 07/14 Cluster: Understand and apply theorems about circles. (Geometry - Additional Cluster)

Clusters should not be sorted from Major to Supporting and then taught in that order. To do so would strip the coherence of the mathematical ideas and miss the opportunity to enhance the major work of the grade with the supporting clusters.

Related Standards

Name Description
MAFS.912.G-C.1.2: Identify and describe relationships among inscribed angles, radii, and chords. Include the relationship between central, inscribed, and circumscribed angles; inscribed angles on a diameter are right angles; the radius of a circle is perpendicular to the tangent where the radius intersects the circle.



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