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Review Population
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Hello, good morning. How are you today?
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Okay, today I'm going to make a very fast summary of the population unit.
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Okay, you remember this is the last unit we did in social science before the classes were over.
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Okay, so let's review. What is population?
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Population is the study of the people that live in a country, in a country or in a particular area.
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Okay, how is data obtained?
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do you remember we have the municipal register which is the place where your
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parents go when you are born okay they have to register you when you're a baby
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and you're born they have to register you with a paper that the doctors have
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given to your mother when she gave birth to you and then your name is inscribed
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You're registered as a person in this country. Then all the data of the
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different municipal registers of the country go to the national census, which
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is a list where all the people in the country is listed. Well, how is
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population classified? There are many ways of classifying population. First we
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have the age do you remember the age groups you can be children from 0 to 12
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maybe or to 15 to 12 and then we have the teenagers it depends on what you
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want to measure okay then we have the youngs or the adults adults 22 I don't
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know 64 and the older people okay so depending on the age and there are these
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different groups or you can group it in another way if you want to classify the
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babies apart from the children whatever okay but this is the age the gender you
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can classify the people whether they are male which are boys and men or female
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for girls and women okay and then there are many other types for example the
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religion what is then the religion of people if they are catholic if they are muslim if they don't
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have any religion if they are jews what is the place of residence do you remember that if you
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live in the countryside if you live in the city there are many ways of classifying people
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population but the most important ones i think are age and then gender and then we can classify
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the place of residence or other different things okay what are the changes in population this is
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important. How can a population change? How can a population increase or decrease? What
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are your ideas? What do you remember? Do you remember about the birth rate? The birth rate
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is the number of children that are born in a big group of people. I think it was in one
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hundred and one thousand people. And then we have the death rate, so how many people
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die in also the same number of... in a thousand people, imagine the death rate.
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So if we have... if the birth rate is higher than the death rate, then we have an increase
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in population.
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Okay, this is the normal increase or decrease of population.
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If there are more births than deaths, of course the population increases.
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Okay, let's think about more... this is like natural growth of population and this is natural
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decrease of population. Let's think about more things that can happen so that the
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population can increase. For example, if we have an improvement
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in medical conditions and we can have access to medicines, to
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hospitals, then we have an increase in the population. What can be a
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decrease and sadly we are witnessing it now for example we have a pandemic okay we have a disease
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and many people dies then we have a decreasing population okay so do you remember about the
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fertility rate it's not to be confused with the birth rate then do you remember we calculated the
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fertility rate of of your family and of the class the fertility rate is the average number let's
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Let's write it here with another color.
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Fertility rate,
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fertility rate
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is the average number of children
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per woman in a group of people, okay?
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Can be calculated in a country, in a city,
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in a small group or in a bigger group, okay?
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If the fertility rate of a country, let's write FR, fertility rate of a country, is more than 2, then the population increases.
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If the fertility rate is lower, less than 2, then the population decreases, because there are not enough children to substitute, so to say, the parents, the two parents.
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Let's have a look at the special features of population of Spain and Europe, because they are very similar.
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Both in Spain and in Europe we have a low fertility rate.
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Do you remember that in Spain the fertility rate was about 1.3 children per woman?
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Do you remember that? It's an average. It doesn't mean that a woman has a baby and a part of another baby.
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Both in Spain and in Europe there is a high life expectancy.
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Do you remember about that? The life expectancy is the years a person is expected to live in a country.
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The life expectancy is very, very close related to the medical conditions and improvements.
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If you have access to good health conditions, hospitals and medicines, you are likely to live more.
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So in a developed country, this is very typical.
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High life expectancy and low fertility rate. What does it mean?
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it means that the population is decreasing, okay? Because the fertility rate is low and people live
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longer. They live longer, so we have an aging population, a population who is getting older
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and older, and there are not so many new newborn kids. Okay, and also in Spain and Europe,
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the population is concentrated in cities and towns, not so many people in the countryside,
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We tend to live in cities or towns.
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And in Spain, especially, the population is concentrated in the coast.
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So that's all for now. You can see that my pen works now. I'm happy.
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See you later! Bye bye!
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- Idioma/s:
- Subido por:
- Isabel María M.
- Licencia:
- Reconocimiento - No comercial - Sin obra derivada
- Visualizaciones:
- 113
- Fecha:
- 13 de mayo de 2020 - 23:11
- Visibilidad:
- Público
- Centro:
- CP INF-PRI CARMEN IGLESIAS
- Duración:
- 07′ 21″
- Relación de aspecto:
- 1.79:1
- Resolución:
- 1376x768 píxeles
- Tamaño:
- 15.32 MBytes
