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Also known as the algebraic peg board
The box is hinged and opens out to display the cubes
Each shape is represented by three cards depicting the shape as a thin outline
The child places various objects in one or both compartments and slides the lid to cover or uncover them
Table of Pythagoras (Decanomial Squares) sort-stack Also known as the algebraicA wooden compartment box containing sets of colour coded wooden squares and rectangles. The Table of Pythagoras is used to build the decanomial for a better understanding of the pattern of numbers. Represents the multiplication facts 1 through 10. Features Box: 31. 5 cm x 27. 5 cm x 4 cm (with lid). Pieces are 3 mm thick. Units are scaled to 1 cm. Recommended ages: 59 years.
US$ 99.00
US$ 299.50
US$ 26.95
