fractions

29 07, 2017

Division – math operation

By |2017-07-29T17:11:41-07:00July 29th, 2017|Math|Comments Off on Division – math operation

How many of these things can I fit into these boxes? Division is a way of answering the question: how many of these things can I fit into that box? [...]

29 07, 2017

What are whole numbers? – Math

By |2017-07-29T16:57:42-07:00July 29th, 2017|Math|Comments Off on What are whole numbers? – Math

A number line is infinite in both directions. Whole numbers are the numbers you learned when you were first learning to count - one, two, three, four, five and so [...]

29 07, 2017

Percents, fractions, and decimals

By |2017-07-29T16:45:17-07:00July 29th, 2017|Math|Comments Off on Percents, fractions, and decimals

Each penny is 1% of a dollar. Percent comes from the Latin words "per cent". That means "out of a hundred," like there are 100 cents in a dollar. So [...]

29 07, 2017

Which one is the numerator? Fractions

By |2017-07-29T16:41:01-07:00July 29th, 2017|Math|Comments Off on Which one is the numerator? Fractions

A pie cut into thirds The numerator of a fraction is the number on the top, just as the denominator is the number on the bottom. In the fraction 1/2, the numerator is one, and in [...]

29 07, 2017

Numbers and math

By |2018-04-24T07:56:24-07:00July 29th, 2017|History|Comments Off on Numbers and math

A number line is infinite in both directions. Numbers are a convenient way for people to organize their thoughts about space and time. First we can think of zero as a point, taking up no [...]

29 07, 2017

What are fractions? – Math

By |2019-06-12T09:13:22-07:00July 29th, 2017|Math|Comments Off on What are fractions? – Math

A fraction of a pie: What are fractions? We started with whole numbers When we first thought about the number line, we counted only in whole numbers - we went straight from zero [...]

29 07, 2017

Which one is the denominator? Fractions

By |2017-07-29T14:52:00-07:00July 29th, 2017|Math|Comments Off on Which one is the denominator? Fractions

A pie cut into thirds The denominator of a fraction is the number on the bottom (the top is the numerator). In the fraction 1/2, the denominator is 2. In the fraction 45/66, the denominator [...]

29 07, 2017

Decimals and fractions – Numbers

By |2017-07-29T14:49:06-07:00July 29th, 2017|Math|Comments Off on Decimals and fractions – Numbers

A number line is infinite in both directions. Decimals, like fractions, are a way of describing points on the number line that fall in between the whole numbers. If you were using fractions, you'd [...]

27 07, 2017

Medieval Islamic mathematics

By |2019-10-07T05:03:36-07:00July 27th, 2017|Islam, Math|Comments Off on Medieval Islamic mathematics

Indian numbers and medieval Islamic mathematics Indian numbers About 630 AD, just before the Islamic empire got started, people in West Asia learned from traders or traveling scholars about "Arabic" numbers. Indian mathematics The invention [...]

27 07, 2017

Medieval Islamic science

By |2019-10-07T07:26:55-07:00July 27th, 2017|Islam|Comments Off on Medieval Islamic science

Medieval Islamic science: Al Tusi's diagram of linear motion from circular motion Indian and African science In the Early Middle Ages, before the formation of the Islamic Empire, Buddhists ran the world's biggest [...]

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