Access Point #: MAFS.912.G-CO.2.AP.6bArchived Access Point

Knowing that rigid transformations preserve size and shape or distance and angle, use this fact to connect the idea of congruency and develop the definition of congruent.

Essential Understandings


  • Using manipulatives, demonstrate the following transformations:

    Image for Translation (Slide), Reflection (Flip), and Rotation (Turn).
  • Teacher resource: Click Here
  • A rigid transformation is one in which the pre-image and the image both have the exact same size and shape.
  • If one shape can become another using turns, flips and/or slides, then the shapes are congruent. Congruent is two objects with the same shape and same size.
General Information
Number: MAFS.912.G-CO.2.AP.6b
Category: Access Points
Date Adopted or Revised: 07/14
Cluster: Understand congruence in terms of rigid motions. (Geometry - Major 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

This access point is an alternate version of the following benchmark(s).

Related Courses

This access point is part of these courses.
1200400: Foundational Skills in Mathematics 9-12
1206300: Informal Geometry
1206310: Geometry
1206320: Geometry Honors
7912060: Access Informal Geometry
1206315: Geometry for Credit Recovery
7912065: Access Geometry

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Type: Element Cards

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