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Grade 4 - Shape and Space

Standard 4.SS.6 - Determine the symmetry of a two dimensional shape in relation to an axis of symmetry.

Included Skills:

Demonstrate an understanding of line symmetry by:
identifying symmetrical 2-D shapes.
creating symmetrical 2-D shapes.
drawing one or more lines of symmetry in a 2-D shape.
Identify the characteristics of given symmetrical and non-symmetrical 2-D shapes.
Sort a given set of 2-D shapes as symmetrical and non-symmetrical.
Complete a symmetrical 2-D shape, given half the shape and its line of symmetry.
Identify lines of symmetry of a given set of 2-D shapes, and explain why each shape is symmetrical.
Determine whether or not a given 2-D shape is symmetrical by using an image reflector or by folding and superimposing.
Create a symmetrical shape with and without manipulatives.
Provide examples of symmetrical shapes found in the environment, and identify the line(s) of symmetry.
Sort a given set of 2-D shapes as those that have no lines of symmetry, one line of symmetry or more than one line of symmetry.

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