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Heavier or lighter? Taller or shorter? Compare linear measurements and use the tree-themed balance to compare weights. Balance arm snaps into place for quick assembly. Calibrates easily with sliding compensator clips.
Includes 24 caterpillars in two sizes and two weights (8 large and 16 small), 36 leaves in two sizes and two weights (12 large and 24 small), and activities aligned to the Common Core.
Age recommendation 5 years +