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Uma das maiores criações da humanidade foi os números, a criação dos números se deu ao longo da história, diante da necessidade do ser humano contar as coisas, pois precisavam de uma forma de representar as quantidades que contavam.

As primeiras representações numéricas apareceram em razão da necessidade de se fazer a contagem dos animais, por exemplo. Os pastores soltavam seu rebanho pela manhã e contavam esses animais através de pedrinhas que eram colocadas num saco. Para cada animal, usava-se uma pedrinha. Ao final do dia, ao buscar o rebanho, os pastores contavam de forma inversa, retirando do saco uma pedrinha para cada animal.

Número é um objeto abstrato da matemática usado para descrever quantidade, ordem ou medida. O conceito de número provavelmente foi um dos primeiros conceitos matemáticos assimilados pela humanidade no processo de contagem.

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Transcrição
00:00Numbering system
00:06In our daily lives, we deal with numbers all the time; it's unlikely you'll go a day without using them.
00:18For this we use the digits of the Hindu-Arabic numeral system.
00:25Numbers have been part of people's daily lives for millennia, but not all numbering systems are like the ones we use in our daily lives.
00:39Numbers are part of people's lives.
00:43They are present at home, at work, at leisure, at the supermarket, at the fair, at school, among gamers and among others.
00:53And we often don't even realize it.
00:58The interesting thing is that numbers are used for various purposes.
01:03Count, order, measure, code and many others.
01:10And now I wanted to know a little about you.
01:13How are numbers present in your life?
01:17And also, for example, in what everyday situations do you use numbers?
01:24So, go ahead and tell us about your experience with numbers in the comments.
01:30And also subscribe to the channel and click the bell to follow all the classes that will be released here on the channel.
01:38And now, let's go.
01:39I'll tell you a story.
01:40A long, long time ago, to know how many sheep he had, a shepherd would set aside a small stone for each sheep,
01:52when he released them to graze.
01:56When he gathered the flock, he took a small stone from the ones he had set aside for each sheep he found.
02:03Each pebble removed corresponded to a sheep.
02:09And it was by comparing quantities that human beings learned to count.
02:15On one side, we have the amount of pebbles.
02:18On the other hand, the number of sheep.
02:21From this arose an idea common to the two groups he was comparing.
02:27The number.
02:28People also used to record quantities by doing, for example,
02:34knots in ropes, marks on pieces of wood or bones.
02:39Each knot and each little mark on the wood or bone corresponded to an element of the quantity that was to be counted.
02:50Unfortunately, few of these records exist today.
02:54So, guys, this class will end here.
02:57So, did you like it?
02:58Go to the comments.
02:59Let's talk about math?
03:02And take advantage and subscribe to the channel and click the bell so you don't miss any classes.
03:06And let's embark on this journey of mathematical knowledge with XMath.
03:11See you next class.
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