7.G.A.3

Describe the two-dimensional figures that result from slicing three-dimensional figures, as in plane sections of right rectangular prisms and right rectangular pyramids.

 
7 Lesson(s)
   

Intro to 3D Figures and Cross-Sections - What shape do you see?

7th Grade Math » Unit: Geometric Measurement
7th Grade Math » Unit: Geometric Measurement
Heather Stephan
Elon, NC
Environment: Suburban
 
Big Idea:

Put on your funny glasses – we are going 3D! Students will use technology to manipulate and discover cross-sections.

 
Favorites (18)
 
Resources (20)
 
Reflections (1)
intro to 3d figures and cross sections pic
   
7th Grade Math » Unit: Geometry
Grant Harris
New Orleans, LA
Environment: Urban
 
Big Idea:

Students use nets to visualize dimensions of bases and lateral faces of a triangular prism.

 
Favorites (5)
 
Resources (15)
 
Reflections (1)
triangular prism
   

Parallel and Perpendicular Cross Sections

7th Grade Math » Unit: Geometric Measurement
7th Grade Math » Unit: Geometric Measurement
Jada Jackson
Columbus, OH
Environment: Urban
 
Big Idea:

This lesson is awesome because it allows students to apply what they have learned and create some 3D figures and cut them apart to see the cross section. Students will also have an opportunity to review vocabulary in this lesson.

 
Favorites (22)
 
Resources (12)
 
Reflections (1)
cross section
   

Nets and Cross Sections

7th Grade Math » Unit: Geometric Measurement
7th Grade Math » Unit: Geometric Measurement
Jada Jackson
Columbus, OH
Environment: Urban
 
Big Idea:

This lesson will create different nets to represent figures. They will also use the 3D figures to determine what the cross sections of the figures will be.

Standards:
 
Favorites (10)
 
Resources (12)
download 7
   

3-D Models from 2-D Views

7th Grade Math » Unit: Geometry
7th Grade Math » Unit: Geometry
Grant Harris
New Orleans, LA
Environment: Urban
 
Big Idea:

Working with unifix cubes is like playing with LEGOs!

 
Favorites (4)
 
Resources (13)
 
Reflections (1)
cubespic
   

Modeling 3D Figures

7th Grade Math » Unit: Geometric Measurement
7th Grade Math » Unit: Geometric Measurement
Jada Jackson
Columbus, OH
Environment: Urban
 
Big Idea:

This lesson is awesome because it allows students to apply what they have learned and create some 3D figures and cut them apart to see the cross section. Students will also have an opportunity to review vocabulary in this lesson.

 
Favorites (20)
 
Resources (19)
 
Reflections (1)
stages chart
   

Finding the Surface Area of Pyramids Using Nets

7th Grade Math » Unit: Geometry
7th Grade Math » Unit: Geometry
Grant Harris
New Orleans, LA
Environment: Urban
 
Big Idea:

No made up numbers! (At least during the heart of the lesson).

 
Favorites (2)
 
Resources (17)
 
Reflections (1)
pyramid pentagon
Common Core Math
 
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