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Geometry
Standard for Grades 3–5
Angles
and Symmetry
Apply
transformations and use symmetry to analyze mathematical
situations
• predict and describe the results of sliding, flipping, and turning two-dimensional
shapes;
• describe a motion or a series of motions that will show that two shapes
are congruent;
• identify and describe line and rotational symmetry in two- and three-dimensional
shapes and designs.
Step
1
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View the Symmetry animation. It
is a great visual introduction. |
Step
2
Visit
these Websites and complete the activities.
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E-Lab
Drag
the line to the shapes to show the
lines of symmetry.
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Sheppard Software
Symmetry Game
How
many lines of symmetry does each shape
have?
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Math Interactives
Compose
equivalent transformations in two different
ways.
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AAA
Math Polygons
Identify
the names of polygons by size and angle.
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Types of Triangles on a Geoboard
Observe and label the angle as
being acute, obtuse or right angle.
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