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EE.1.G.2. Sort shapes of same size and orientation
(circle, square, rectangle, triangle).
1.G.3. Partition circles and rectangles into two and four equal shares, describe the shares using the
words halves, fourths, and quarters, and use the phrases half of, fourth of, and quarter of. Describe
the whole as two of or four of the shares. Understand for these examples that decomposing into
more equal shares creates smaller shares.
EE.1.G.3. Put together two pieces to make a shape
that relates to the whole (i.e., two semicircles to
make a circle, two squares to make a rectangle).
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Students do not need to learn formal names such as “right rectangular prism.”
COMMON CORE ESSENTIAL ELEMENTS for MATHEMATICS
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