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Two-dimensional & Three-dimensional Attributes

T.I.P.S.


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The student must be able to recognize that attributes such as the number of sides, surfaces, etc., are defining attributes, whereas color, size, and orientation are not. Students must be able to describe two-dimensional figures and three-dimensional solids using defining attributes.

Example


a)  Identify the sentences that are true about all rectangular prisms.

  • Rectangular prisms can roll.
  • The faces of a rectangular prism are rectangles.
  • Rectangular prisms have 6 faces.
  • Rectangular prisms are made of wood.
  • Rectangular prisms are big.

b)  Explain your thinking about the sentences you did not identify as true about all rectangular prisms.
 Hint

 Possible Solutions 

Resources


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TEKS


1.6 Geometry and measurement. The student applies mathematical process standards to analyze attributes of two-dimensional shapes and three-dimensional solids to develop generalizations about their properties. The student is expected to:

(B) distinguish between attributes that define a two-dimensional or three-dimensional figure and attributes that do not define the shape

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