The basic idea
An abacus is a manual calculator made of a frame, rods, and movable beads. Each rod represents a place value such as ones, tens, hundreds, and thousands.
Resource
What Is An Abacus?
A clear explanation of the abacus, its rods and beads, place-value logic, and why it still matters for children learning arithmetic.
How it helps children
Because students physically move beads, they can see and feel place value. With practice, they learn to visualize the abacus and calculate mentally.
Beyond calculation
Abacus training also supports concentration, memory, logical thinking, and a stronger relationship with numbers.