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By: Carmen Scaringi

By: Carmen Scaringi. The Abacus. The Chinese name for the abacus is “suanpan”. It is used to calculate in ancient China. The abacus was used to do addition, subtraction, multiplication and division. The Inventor…. Aniello, was the inventor of the abacus. He invented it in the Han Dynasty. .

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By: Carmen Scaringi

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  1. By: Carmen Scaringi

  2. The Abacus The Chinese name for the abacus is “suanpan”. It is used to calculate in ancient China. The abacus was used to do addition, subtraction, multiplication and division.

  3. The Inventor… • Aniello, was the inventor of the abacus. He invented it in the Han Dynasty.

  4. How It Is Used Today… • Yes abacus still in used today, specially for visual impaired students. They use it to work in Braille schools for math.

  5. How and When It Was Introduced… • The history of the abacus starts in600 BC. In the Han Dynasty . The abacus was appeared in the book of Supplementary Notes. • It was very popular and usually used in the period of Northern Song Dynasty . • In the Ming Dynasty, it was introduced in Japan. Later people started to create their one inventions for calculating.

  6. How It’s made… • It is made out of a wires in a wooden frame with vertical rows of beads strung on wires. • The beads are moved up and down when people are doing the calculation. • The Abacus, is still being used by merchants, traders and clerks in some parts of China.

  7. Thank You For Watching My Presentation

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