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Cuisenaire rodsstresses
gen. счётные палочки, цветные счётные палочки Кюизенера (Any of a set of colored rods usually of 1 centimeter cross section and of 10 lengths from 1 to 10 centimeters that are used for teaching number concepts and the basic operations of arithmetic. [fr. Cuisenaire, a trademark] (1954) lukaikin)