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# Cross-Sections and Nets

## Cross-sections are intersections of a plane with a solid, and nets are unfolded, flat representations of the sides of a 3-D shape.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Cross-Sections and Nets

by CK-12 //basic

Represent three-dimensional objects in two dimensions.

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## Cross-Sections and Nets

Draw two-dimensional representations of solid figures

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## Recognize and Draw Nets

Recognize and draw two-dimensional representations of solid figures

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## Cross-sections and nets of three-dimensional figures 7.G.3

This concept teaches students two ways to represent three dimensions in two dimensions: cross-sections and nets.

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## MCC6.G.4 - Nets

Draw two-dimensional representations of solid figures

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## Cross Sections of Solids

Identify cross sections of solids. Use information about cross sections to find volumes of solids.

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## Cross Sections of Solids

Identify cross sections of solids. Use information about cross sections to find volumes of solids.

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## Cross-Sections and Nets

by Art Barket //basic

Represent three-dimensional objects in two dimensions.

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## Cross-Sections and Nets 2

by Christopher King //basic

Represent three-dimensional objects in two dimensions. EngageNY has been used for a portion of this content.

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## Cross-Sections & Nets

Draw two-dimensional representations of solid figures. EngageNY has been used for a portion of this content.

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## Nets

Draw two-dimensional representations of solid figures

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## Nets of Solid Figures

Discover how to match a solid figure to its net and a net to its solid figure.

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• PLIX

## Cross-Sections and Nets: Cereal Box Grid

Cross-Sections and Nets Interactive

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• Video

## Nets - Overview

by CK-12 //basic

Overview

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• Video

## Cross Sections and Nets Principles

This video gives more detail about the mathematical principles presented in Cross Sections and Nets.

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• Video

## Cross Sections and Nets Examples

This video shows how to work step-by-step through one or more of the examples in Cross Sections and Nets.

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• Video

## Three Dimensions in Two Dimensions Principles - Basic

by CK-12 //basic

This video provides the student with a walkthrough on three dimensions in two dimensions.

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• Video

## Three Dimensions in Two Dimensions Examples - Basic

by CK-12 //basic

This video provides the student with a walkthrough of one or more examples from the concept "Three Dimensions in Two Dimensions".

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• Video

## Geometry Nets

by CK-12 //basic

Learn about nets by "unfolding" a 3-dimensional figure.

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• Video

## Nets - Example 1

by CK-12 //basic

Determining whether a net will form a cube or cuboid when folded

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• Practice
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## Cross-Sections and Nets Practice

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• Critical Thinking

## Cross-Sections and Nets Discussion Questions

A list of student-submitted discussion questions for Cross-Sections and Nets.

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## Cross-Sections and Nets Post Read

To activate prior knowledge, to generate questions about a given topic, and to organize knowledge using a KWL Chart.

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## Cross-Sections and Nets Pre Read

To activate prior knowledge, to generate questions about a given topic, and to organize knowledge using a KWL Chart.

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## Draw Two-Dimensional Representations of Solid Figures Post Read

Develop understanding of concepts by studying them in a relational manner. Analyze and refine the concept by summarizing the main idea, creating visual aids, and generating questions and comments using a Four Square Concept Matrix.

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• Real World Application

## Hold the Mail!

Watch as a Priority Mail package is constructed from its net into a box.

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• Real World Application

## Origami in Outer Space

Learn about the geometry that links the craft of origami to aerospace engineering.

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• Real World Application

## Womb with a View

Learn how cross-sections are used to create 3D and 4D ultrasounds.

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• Real World Application

## The Body Factory?

Discover how 3D printing will revolutionize medicine.

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• Study Guide

## Representing Solids Study Guide

This study guide gives an overview of isometric view, orthographic view, cross section, and nets.

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## Cross Section Flyer

by CK-12 //basic

This exciting interactive allows you to view different cross sections of many different figures on the coordinate plane. You can view different cross sections based off of selected positions on the x-, y-, and z-axes.

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## Unfolding Polyhedra

by CK-12 //basic

Have trouble visualizing polyhedra nets? Play around with this interactive to see the unfolding of a polyhedra at all angles.

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• Flashcards

## Polyhedrons, Cross-Sections, and Nets Flashcards

by CK-12 //basic

These flashcards help you study important terms and vocabulary from Polyhedrons and Cross-Sections and Nets.

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• Flashcards

## Cross-Sections and Nets

by Galaxy Portillo //basic

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• Flashcards

## Cross-Sections and Nets

by Kyle Bardman //basic