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20 Bead Arithmetic Rack

The Giant Abacus - 20 Bead Arithmetic Rack is an ideal resource to introduce children to the five and ten structure of numbers. Using these numbers as reference points, children can combine and partition numbers to investigate strategies for counting, addition and subtraction.

Children who are fluent with five and ten as reference points are unlikely to rely on long sequences of counting-by-ones when adding or subtracting.
Robert, Wright J., et al.(2006). Teaching Number in the Classroom

Use the 20 Bead Arithmetic Rack to introduce the numbers from 1 to 20.
Extend to numbers to 100 using the Giant Abacus.

The Arithmetic Rack has a solid wooden frame with removable stainless steel rods. These allow you to customize the colour arrangement of the wooden beads.

Size: frame 565 x 520mm wooden beads 36 x 22mm

Item No KB2113

/ACL/ACL.gifACMNA002, ACMNA004, ACMNA289, ACMNA012, ACMNA029, ACMNA030

$79.00

See also

20 Bead Student Arithmetic Rack

Size: frame 73 x 256mm Wooden beads 20 x 11mm Item No KB2116
$10
$
10

120 Bead String & 2 Magnetic Hooks

Attach this bead string to your whiteboard using the magnetic hooks to demonstrate, partitioning numbers to 120 and strategies to solve simple addition and subtraction problems. 120 Bead St...


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