'Babylonian numerals' diaporamas de présentation

Counting

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Warm Up Activity Four 4s

Warm Up Activity Four 4s. Use four 4s and the arithmetic operations (+, -, x, /) plus grouping symbols to create each of the counting numbers from 0 to 10. Use exactly four 4s for each number. Counting. Did humans always do math as we do it today? Did they always use the symbols we use?.

510 views • 17 slides

Early Counting Methods

Early Counting Methods. Early Counting Tokens Tallies. Plain Counting Tokens. Counting Tokens. Ishango Bone. Tally of the Exchequer. Inca Quipu. Base Number Systems. Number Bases Quinary Decimal Duodecimal Vigesimal Sexagesimal. Egyptian Numerals. Egyptian Example.

552 views • 16 slides

Making a Difference in Education through Innovation in Technology

306 views • 15 slides