Base 60 (sexagesimal) - Numberphile

The ancient Babylonians used a number system with base 60 (sexagesimal). More links & stuff in full description below ↓↓↓ This video features Thomas Woolley - he tweets at https://twitter.com/#!/thomasewoolley
mathematics counting numbers mathematical numerals number count maths number phile
40 Digital Numeracy Idea Cards with quick, creative prompts in measurement, patterns, and algebraic thinking to refresh elementary math instruction and boost student engagement—fast and easy to use.
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