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Cross Sections of Three-Dimensional Figures

Grade Levels
6th, 7th, 8th
Common Core Standards
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0.59 MB   |   10 pages

PRODUCT DESCRIPTION

This learning activity starts with students predicting the two-dimensional shapes resulting from slicing three-dimensional figures from a picture. Students can work individually, in pairs, or small groups. Next, they move on to creating a 3D model using clay or play-doh and creating cross sections to verify their predictions. The activity focuses on three figures, the cube, a rectangular prism, and a right rectangular pyramid. Slices are confined to parallel to the base, perpendicular to the base, and angled cuts.

Probing questions ask students to reflect on the possible shapes formed by different slices, what 2D shapes cannot be formed from the models, is there a pattern to cross sections formed by the intersection of a plane that is either parallel or perpendicular to the bases of a prism, and the possibility of creating curved cross sections from the given figures. At the end, students are asked to write a short reflection on their learning.

An answer key and teacher notes are included.

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Total Pages
10
Answer Key
Included
Teaching Duration
45 Minutes

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Cross Sections of Three-Dimensional Figures
Cross Sections of Three-Dimensional Figures
Cross Sections of Three-Dimensional Figures
Cross Sections of Three-Dimensional Figures