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Activity
National Council of Teachers of Mathematics

Nctm: Illuminations: Cutting Corners

For Students 9th - 10th Standards
Students will use their knowledge of plane figure attributes to create and view shapes by cutting and rotating shapes to stimulate discussions on names and attributes of various shapes they do not regularly encounter.
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Activity
National Council of Teachers of Mathematics

Nctm: Figure This: Fire Hydrant

For Students 3rd - 8th Standards
Discover how the geometric shape of an object directly relates to its usefullness in this math challenge from the NCTM Math Challenges for Families collection. A one page activity that you can print or download.