Standard #: MA.4.G.5.1 (Archived Standard)


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Classify angles of two-dimensional shapes using benchmark angles (45°, 90°, 180°, and 360°)


Remarks


Use pictures of real world objects or diagrams of shapes with angles and ask students to classify the given angles by using benchmark angles.

 

Use protractor to draw the angles of 45, 90, 180, and 360 degrees.

 



General Information

Subject Area: X-Mathematics (former standards - 2008)
Grade: 4
Body of Knowledge: Geometry
Idea: Level 1: Recall
Supporting Idea: Geometry and Measurement - Geometry and Measurement
Date Adopted or Revised: 09/07
Content Complexity Rating: Level 1: Recall - 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)
    N/A

    Clarification :
    Students will classify angles by the following terms: acute, obtuse, right, or straight.

    Students will identify the benchmark angle measurements of 45°, 90°, 180°, and/or 360°.
    Content Limits :
    Items may include the following vocabulary terms: ray, angle, (acute, obtuse, right, straight), and perpendicular lines.

    Items will not include the vocabulary terms: complementary, supplementary, and vertical.

    Items will not require the use of a protractor or measuring an angle to the nearest degree.

    Items may include the geometric notation for angle (∠) and degrees (°).
    Stimulus Attributes :
    Items will include only two-dimensional figures.

    Items may be set in either a real-world or a mathematical context.

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


Sample Test Items (1)

Test Item # Question Difficulty Type
Sample Item 1 Lakia drew triangle QRS, as shown below.

triangle

which is closest to the measure of ?q?
N/A MC: Multiple Choice


Related Resources

Image/Photograph

Name Description
Clipart: Geometric Shapes

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

Parent Resources

Image/Photograph

Name Description
Clipart: Geometric Shapes:

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



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