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- One large yellow equilateral triangle with a black line along all sides
A wooden box contains 20 matching pieces
1 set with equations printed on them and 1 set with the answers to be used with the Addition Working Charts
Children use the Subtraction Strip Board by selecting subtractioncombinations of one through eighteen
Hundred golden bead bars of ten linked together to form the 1000 chain
Constructive Triangles With 5 Boxes Sensorial - One large yellow equilateral5 wooden boxes with lids contain triangles in different sizes, shapes and colors. Rectangular Triangles A pair of yellow equilateral triangles with a black line along on of the sides. A pair of gray scalene right angled triangles with a black line along the hypotenuse. A pair of green scalene right angles triangles with a black line along the hypotenuse. A pair of yellow isosceles right angled triangles with a black line along one of the two sides. A
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