Population Pyramids

-
   Today in class, we watched a TED-Ed Youtube video on our laptops on Population Pyramids. We have talked about them before, but this gave a further explanation. Here is a picture of the current (2019) World Population Pyramid:

Here are the important notes I wrote down when I watched the video:

  • A population pyramid is a visual representation which has males and females on opposite sides.  It shows population in each five-year age interval. (starts from ages 0-4 and ends on age 100 and up)
  • Age intervals are grouped together into pre-reproductive (ages 0-14), reproductive (15-44), and post-reproductive (ages 45 and up).
  • Population pyramids can be very useful when predicting future population trends. You can predict whether a country's population will increase or not.
  • Demographic transition- when a country moves from a pre-industrial society to one with an industrial or post-industrial economy.
  • Countries that have only recently begun the process of industrialization typically see an increase in life expectancy, and a decrease in child mortality as a result of improvements in medicine, sanitation, and food supply.
  • A fall in birth rates can be because of increased education and opportunities for women outside of child-rearing. It can also be caused by a move from rural to urban living.
  • Countries in advanced stages of industrialization can reach a point where both birth rates and death rates are low, and the population remains stable, or even begins to decline.
  • A population pyramid can be useful as a record of the country's past.
   After this, we got our Population and Settlement tests back! We got to review the answers on the first page today, and we could see what we got wrong. I am very happy with my score because I got a 98% on it.

Comments

Post a Comment

Popular posts from this blog

Dramas Performed in Ancient Greece

-
Image
In Ancient Greece, dramas were performed as a form of art, just like plays in our society today. Dramas back then would focus on leadership, justice, and duties owed to the gods. There were two types of drama in Ancient Greece. A tragedy is one type. Tragedies were serious dramas about common themes such as love, hate, war, or betrayal. There were usually main characters and tragic heroes. The tragic hero had what is called a "tragic flaw". This is what causes the downfall of this hero. Aeschylus, Sophocles, and Euripides were great authors of tragedies in Ancient Greece. The other type of drama is called a comedy. Comedies contained scenes slapstick situation and crude humor. In comedies, politics and respected people/ideas were usually made fun of. A playwright named Aristophanes wrote the first great comedies for the stage like The Birds  and Lysistrata . (b) An Ancient Greek comedy has similarities to the movie Home Alone . For starters, they both  colorful costumes/se
Read more

Thoughts on Mr. Schick's Blog

-
   On yesterday's Western Civ. blog post, Mr. Schick posted a bunch of his thoughts on aspects of cyber school. One thing he mentioned in his list was accountability. During this time away from our regular school environment, we are finding that students really need to step up by focusing on doing our assignments with our 100% effort, by realizing the importance of doing our own work, and trying our hardest to manage our time so that we get our work done efficiently. I would completely agree with this. From my point of view, I am finding it harder to get my work done efficiently. Not only do we have an increased workload of schoolwork, but we have to give it our all and try our best on these assignments, with all the difficulties surrounding us. To be completely honest, I find myself wanting to just look up the answers to my work, but then I realize that I need to truly understand the subject/topic we're learning. This can make it even harder because, like Mr. Schick stated in
Read more

Poem... Well Kinda a Rap

-
Alexander the Great Born in 356 BC He was tutored in philosophy Alex was a ruler It comes from his dad Who really wasn’t cooler …Macedonia was just a start To his empire built with heart He won every war that he’s ever fought Riding on his horse that he always brought Bucephalus was his name  Yeah you heard it right You know his horse friend could sure put up a fight! Anatolia and Syria, Egypt and Judea Phoenicia, Bactria Even Persia too Yeah these were the places Alexander took over Sweeping over nations like a bulldozer Here comes the end And yeah it’s pretty sad Alex gets sick and yeah it’s pretty bad It all ended in Babylon From this point on he could not carry on Not many people showed him hate After all, he was Alexander the Great
Read more