Understands that smaller two-dimensional and three-dimensional shapes can be joined to form a larger composite shape, and that the same whole may be built from different arrangements or combinations of parts. Reasoning includes recognizing how sides, faces, and vertices align and how a shape’s orientation can change without changing its identity; formal area, volume, and generalized composition are beyond this level.
Smaller shapes can join to make one larger shape. Look for sides that can touch with no gaps and no overlaps.
Example: Make a larger square using 4 small squares.
The 4 small squares have been composed, or joined, to make 1 larger square. You can turn the whole shape, but it is still a square.
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