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.
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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.
- Test Item #: Sample Item 1
- Question: Becky has two shape stickers, as shown below. which of the following figures can becky make by combining the stickers, without overlapping?
- Difficulty: N/A
- Type: MC: Multiple Choice
Related Access Points
Related Resources
Image/Photograph
Student Resources
Parent Resources
Image/Photograph
In this lesson, you will find clip art and various illustrations of polygons, circles, ellipses, star polygons, and inscribed shapes.
Type: Image/Photograph