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ACTIVE LEARNING
ACTIVE LEARNING
Experiential Learning
ABACUS
An Abacus is the world’s first calculator. It is a calculating tool which has been used
since ancient times.
It consist of beads lined up on rods and is used for counting and calculation.
The abacus we use currently has 13 rods, and each rod has 5 beads.
The horizontal bar that divides the upper and lower part is called the beam.
The beads present in the lower part are called the lower beads.
The beads present in the upper part are called the upper beads.
Frame Upper Beads
Upper
Bar Deck
Rod
Lower
Deck
Lower Beads Unit’s Place
The column that is on the extreme right is for the one’s place.
The next column is used for the ten’s place.
The third column from the right end is for the hundred’s place and so on.
The top row is 5 times the bottom row. After 5 lower beads are counted, the
result is “carried” to the upper row.

