MA.3.G.3.1Archived Standard

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Describe, analyze, compare, and classify two-dimensional shapes using sides and angles - including acute, obtuse, and right angles - and connect these ideas to the definition of shapes.

Remarks

Polygonal shapes can be classified by the number of sides. For example, quadrilaterals are polygons with four sides. Quadrilaterals can be further classified by other properties, such as the number of parallel pairs of sides (none, one pair or two pair). In the case of two pair of parallel sides, we call it a parallelogram.

 

Note: Angles are classified by comparing them to a right angle as a benchmark.

 

Students should be familiar with the geometric term "diagonal."

 

General Information
Subject Area: X-Mathematics (former standards - 2008)
Grade: 3
Body of Knowledge: Geometry
Idea: Level 2: Basic Application of Skills & Concepts
Big Idea: BIG IDEA 3 - Describe and analyze properties of two-dimensional shapes.
Date Adopted or Revised: 09/07
Content Complexity Rating: Level 2: Basic Application of Skills & Concepts - 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 describe, analyze, compare, and classify two-dimensional shapes using sides and angles–including acute, obtuse, and right angles.
  • Content Limits :
    Items may include regular and irregular polygons with 3, 4, 5, 6, 8, or 10 sides. 

    Polygons used in items may be concave or convex. 

    Polygons used in items may include types of triangles (right, equilateral, isosceles, and scalene), types of quadrilaterals (parallelogram, trapezoid, rectangle, rhombus, square, and/or kite), pentagons, hexagons, octagons, and decagons. 

    Polygons may be classified by use of parallel or perpendicular sides as well as number of sides and/or types of angles. 

    Items may assess the specific names of polygons with 3, 4, 5, 6, 8, or 10 sides and the following terms: regular and irregular polygons, lines and line segments (parallel and perpendicular), diagonals, and vertices (vertex). 

    Items will not include defining or identifying the following vocabulary terms: concave and convex. 

    Types of angles will not be assessed in isolation at this benchmark.

  • Stimulus Attributes :
    Items may be set in either a real-world or mathematical context.

    Graphics should be used in most of these items, as appropriate.

     

Sample Test Items (1)
  • Test Item #: Sample Item 1
  • Question: Andrew bought the frame shown below for his sports picture.

    pictures

    Which best describes the shape of the frame?

  • 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

Lesson Plan

Points, Lines, and Angles, Oh My!:

In this lesson, students work to identify points, lines, line segments, rays, angles and perpendicular and parallel lines. Students create webs of yarn and analyze the web for geometric properties listed above. A teacher can select which vocabulary terms are appropriate for the class.

Type: Lesson Plan

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