Age 3 to grade 5/6 an ideal resources for 'Special Needs'. We have been informed by special needs teachers working with visually impaired, and special needs students that the Sum-thing™  abacus is very effective and particularly suited to their working environment.

Noting that because the abacus is self contained, there is less likelihood of pieces falling on the floor and being lost or disrupting lessons.

Teachers like the Sum-Thing™ abacus because it is quite in operation, the beads do not come off the string (no picking up pieces at the end of class), each child can physically do the calculations at the same time, it attracts and keeps the child's attention, it can be used either individually or in groups, and it is versatile.