Shapes, Symmetry and Congruency in

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Zoom- In Geometry
Shapes, Symmetry and Congruency in the World
Around Us Lainie Ortiz
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What might Primary Sources tell us about geometry
in our world?
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What kinds of shapes do you see? Do you see any
2-D shapes? Can you name them?
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What kinds of 3-D shapes do you see? Can
you describe them?
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• Do you see any symmetry in this picture?
• Tell about it.
• What lines of
• symmetry do you
• see?

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Do you think the other part of the building in
the picture will be symmetrical? Why or why not?
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Did you visualize this? Was the building
symmetrical? Why or why not? Did you see other
symmetrical areas in the picture?
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What geometrical shapes do you see now? Can you
identify a shape and tell how many lines of
symmetry there are?
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Do you see congruency in the picture? Tell about
it.
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What kind of view is this? How does it affect how
you see geometry in the world? Would it make a
difference if the picture was flat?
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Have you ever seen this view before? How do you
think this picture was taken? Where was this
picture taken? Describe views you have seen
similar to this. Think about the shapes you saw
and how the view affected what you saw.
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AERIAL VIEW OF THE WHITE HOUSE GROUNDS, ELLIPSE,
AND MONUMENT GROUNDS, LOOKING SOUTH, ca. 1933