MA.3.G.3.2Archived Standard

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Compose, decompose, and transform polygons to make other polygons, including concave and convex polygons with three, four, five, six, eight, or ten sides.

Remarks

Example: With pattern blocks, a trapezoid and a triangle can be combined to form a parallelogram or a large triangle. Also, the hexagon can be decomposed to form two trapezoids, and so forth.

 

Example: One can cut a triangle off of a parallelogram so that, when translated and attached to the other side, the parallelogram becomes a rectangle.

General Information
Subject Area: X-Mathematics (former standards - 2008)
Grade: 3
Body of Knowledge: Geometry
Idea: Level 3: Strategic Thinking & Complex Reasoning
Big Idea: BIG IDEA 3 - Describe and analyze properties of two-dimensional shapes.
Date Adopted or Revised: 09/07
Content Complexity Rating: Level 3: Strategic Thinking & Complex Reasoning - More Information
Date of Last Rating: 06/07
Status: State Board Approved - Archived
Assessed: Yes
Test Item Specifications
  • Item Type(s): This benchmark may be assessed using: MC item(s)

  • Clarification :
    Students will identify polygons which have been composed or decomposed from other polygons. 

    Students may use transformations to compose or decompose polygons.

  • Content Limits :
    Items may include concave or convex polygons with 3, 4, 5, 6, 8, or 10 sides. 

    Items may include the use of transformations to create new polygons, but the transformation (i.e., rotations, translations, reflections, dilations) will not be assessed. 

    Geometric terms will be used with common terminology set in parentheses, i.e., reflection (flip). 

    Items may use the following terms: overlapping, combine, and polygon.

    Items will not assess the following vocabulary terms: concave, convex, compose, or decompose.

  • Stimulus Attributes :
    Graphics should be used in most of these items, as appropriate.
Sample Test Items (1)
  • Test Item #: Sample Item 1
  • Question: Becky has two shape stickers, as shown below.

    graphic

    which of the following figures can becky make by combining the stickers, without overlapping?
  • Difficulty: N/A
  • Type: MC: Multiple Choice

Related Access Points

Alternate version of this benchmark for students with significant cognitive disabilities.

Related Resources

Vetted resources educators can use to teach the concepts and skills in this benchmark.

Image/Photograph

Clipart: Geometric Shapes:

In this lesson, you will find clip art and various illustrations of polygons, circles, ellipses, star polygons, and inscribed shapes.

Type: Image/Photograph

Student Resources

Vetted resources students can use to learn the concepts and skills in this benchmark.

Parent Resources

Vetted resources caregivers can use to help students learn the concepts and skills in this benchmark.

Image/Photograph

Clipart: Geometric Shapes:

In this lesson, you will find clip art and various illustrations of polygons, circles, ellipses, star polygons, and inscribed shapes.

Type: Image/Photograph