## 6.G.4 Finding Surface Area of 3-D Figures Involving Nets (1&2)

Posted: February 10, 2014 in Periods 1&2

6.G.4
Represent three-dimensional figures using nets made up of rectangles and triangles, and use the nets to find the surface area of these figures. Apply these techniques in the context of solving real-world and mathematical problems.

• 1. Identify the parts of three-dimensional solids
6.G.4
• 2. Represent three-dimensional figures with nets
6.G.4
• 3. Analyze rectangular prisms to find surface area – Part 1
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• 4. Analyze rectangular prisms to find surface area – Part 2
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• 5. Find surface area of rectangular prisms
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• 6. Analyze triangular prisms to find surface area – Part 1
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• 7. Analyze triangular prisms to find surface area – Part 2
6.G.4
• 8. Find surface area of triangular prisms
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• 9. Solve real-world problems with surface area
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• 10. Decide whether to find area, surface area, or volume
6.G.4

#### Interactive Practice:

1. 2-D to 3-D Morphing – Use geometry to make flat shapes “rise up” into fun 3D objects.
2. 3-D Object Viewer – Students may explore a variety of 3-D objects and their accompanying 2-D views.
3. Building Houses with Side View – Student constructs a block figure (dynamic, perspective drawing) to match (10 different figures)
4. Coloring 2-D sides – Use the colored portion of the 3-D object to color the correct side of the 2-D drawing.
5. Coloring 3-D sides – Find the red sides shown in a series of 2-D drawings and click on the right face of the 3-D model to color it red. 20 questions [UK spelling on this site]
6. Cube – Find out which colors will be on opposite faces of a cube whose faces are shown unfolded.
7. From 2-D to 3-D – Flash animation video lesson
8. Guess the View – Students are given a 3-D view of an object, and then given a 2-D view of the object. Students must choose which of 6 views is being displayed from a list.
9. Plot Plans and Silhouettes – From Shape and Space in Geometry – the student task is to come up with plot plans that could match the given silhouettes.
10. Plot Plans and Silhouettes – Background information
11. Point Out the View – A ten level activity from PBS Kids, students must show what 2-D view each of four viewers would see when looking at a stack of blocks
12. Rotating Houses – Students are presented with a 3-D figure created with blocks that can be rotated and flipped using a mouse. The figure must be rotated until it matches a 2-D representation of one of the views.