Nienhuis Montessori | Catalog 2019

Mathematics

ELEMENTARY 6 – 12

MULTIPLICATION

Decimal Checker Board This material allows the child to work short and long multiplication problems of whole and decimal numbers. The Decimal Checker Board is made up of 49 squares colored in the hierarchical shades of green, blue and red. The diagonal squares represent the hierarchies from millions to millionths and differentiate decimals from whole numbers (colored bead bars and specially designed Number Tiles are needed to perform the exercises: Item Number: 0138M0 or 0138G0 and 0138B0). To avoid bead movement, the wood surface is

covered with printed carpet. Item Number: 018201 •

Checker Board Beads: Individual Beads Contains 20 of each colored bead bars 1 through 9 in a wooden box with lid. These beads along with the tile material (Item Numbers 0138B0 and 009950) are component parts necessary to do the Checker Board activities.

Item Number: 0138G0 (Glass) • Item Number: 0138M0 (Nylon) •

Number Tiles This set of wooden color-coded Number Tiles is designed for use with the Checker Board, Decimal Checker Board

and the Flat Bead Frame. Item Number: 0138B0

Box With Gray And White Number Tiles This advanced set of wooden color-coded Number Tiles is designed for use with the Checker Board, Decimal Checker Board, the Flat Bead Frame, the Bead Material and various other math exercises. The numerals on the tiles are printed in black, instead of the colors used in the hierarchy of the decimal system, thus demonstrating the move from one category to another more clearly. Item Number: 009950 • Division Working Charts The Division Working Charts aid the child in practice and memorization of the division combinations. Includes 2 working charts, 1 control chart and a box of wooden answer chips. The first working chart later becomes the control chart for the child to correct his work with the blind chart. Item Number: 0142D1

DIVISION

• =

Nienhuis Montessori 225

Essential