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MAFS.912.G-CO.1.1

Know precise definitions of angle, circle, perpendicular line, parallel line, and line segment, based on the undefined notions of point, line, distance along a line, and distance around a circular arc.
Subject Area: Mathematics
Grade: 912
Domain-Subdomain: Geometry: Congruence
Cluster: Level 1: Recall
Cluster: Experiment with transformations in the plane. (Geometry - Supporting 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.

Date Adopted or Revised: 02/14
Content Complexity Rating: Level 1: Recall - More Information
Date of Last Rating: 02/14
Status: State Board Approved
Assessed: Yes

TEST ITEM SPECIFICATIONS

  • Item Type(s): This benchmark may be assessed using: OR item(s)

  • Assessment Limits :

     None

  • Calculator :

    Neutral

  • Clarification :
    Students will use the precise definitions of angles, circles,
    perpendicular lines, parallel lines, and line segments, basing the
    definitions on the undefined notions of point, line, distance along a
    line, and distance around a circular arc.
  • Stimulus Attributes :
    Items may be set in a real-world or mathematical context

    Items may require the student to analyze possible definitions to
    determine mathematical accuracy.

    Items may require the student to use definitions for justifications
    when choosing examples or nonexamples.

    Items may require the student to use properties of rotations,
    reflections, and translations as steps to a formal definition.

  • Response Attributes :

    None

SAMPLE TEST ITEMS (1)

  • Test Item #: Sample Item 1
  • Question:

    Kyle defines a circle as "the set of all the points equidistant from a given point."

    Explain why Kyle's definition is not precise enough.

    Type your answer in the space provided.

  • Difficulty: N/A
  • Type: OR: Open Response