Lesson 12 — The geocentric model

The Geocentric Model
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Slide 1: Tekstslide
Geocentric modelMiddelbare schoolhavo, vwoLeerjaar 1

In deze les zitten 31 slides, met tekstslides en 3 videos.

Onderdelen in deze les

The Geocentric Model

Slide 1 - Tekstslide

Deze slide heeft geen instructies

This lesson
  • Recap the moon
  • Thought experiment — Ancient astronomers
  • The geocentric model
  • Readin 3.7

Slide 2 - Tekstslide

Deze slide heeft geen instructies

Learning goals
    • Describe what the term 'Geocentric model' means

    • Explain how the geocentric model works and how it was formed

    • Name evidence for the geocentric model

    Slide 3 - Tekstslide

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    Recap — Exercise
    • What do remember about the moon?

    • Using paragraph 3.6 discuss with your neighbour what you learned

    Slide 4 - Tekstslide

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    Slide 5 - Tekstslide

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    Crescent

    Gibbous

    Waxing

    Waning

    Slide 6 - Tekstslide

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    Crescent

    Gibbous

    Waxing

    Waning

    Slide 7 - Tekstslide

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    Crescent

    Gibbous

    Waxing

    Waning

    Slide 8 - Tekstslide

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    Crescent

    Gibbous

    Waxing

    Waning
    The shadow of the moon in decreasing

    Slide 9 - Tekstslide

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    Crescent

    Gibbous

    Waxing

    Waning
    The shadow of the moon in decreasing
    The shadow of the moon is increasing

    Slide 10 - Tekstslide

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    Slide 11 - Tekstslide

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    What is an eclipse?

    Slide 12 - Tekstslide

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    Slide 13 - Tekstslide

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    Slide 14 - Video

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    Slide 15 - Video

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    Thought experiment

    • Ancient astronomers

    Slide 16 - Tekstslide

    Imagine you are living in the times of the ancient greeks, more than two thousand years ago. And you were someone incredibly fascinated by and curious about the night sky.

    What would be different back than from now? There would be no internet, no electricity, no phones. Houses where different, streets where different, there was no such thing as cars and busses and trains. Most people never traveled and didn't know how to read and write. 

    You didn't know how matter, forces, energy or almost anything else worked. How did you explain things? through the stories you heard from other people. You didn't know what caused rain, what caused wind, what the stars, the sun and the moon were. 

    And then you study the stars, the night sky, the universe as you see it with your own two eyes. Then what do you see? How does it work? — Use video to create impression. Make this into a conversation


    After coming to the geocentric model, share the idea of how silly it is to think that the earth is the center of the universe with what we know now - how vast the universe really is.
    After coming to the geocentric model, share the idea of how silly it is to think that the earth is the center of the universe with what we know now - how vast the universe really is.
    After coming to the geocentric model, share the idea of how silly it is to think that the earth is the center of the universe with what we know now - how vast the universe really is.
    After coming to the geocentric model, share the idea of how silly it is to think that the earth is the center of the universe with what we know now - how vast the universe really is.
    After coming to the geocentric model, share the idea of how silly it is to think that the earth is the center of the universe with what we know now - how vast the universe really is.

    After coming to the geocentric model, share the idea of how silly it is to think that the earth is the center of the universe with what we know now - how vast the universe really is.

    Slide 17 - Video

    Deze slide heeft geen instructies

    Thought exepriment

    • Ancient astronomers

    Slide 18 - Tekstslide

    Imagine you are living in the times of the ancient greeks, more than two thousand years ago. And you were someone incredibly fascinated by and curious about the night sky.

    What would be different back than from now? There would be no internet, no electricity, no phones. Houses where different, streets where different, there was no such thing as cars and busses and trains. Most people never traveled and didn't know how to read and write. 

    You didn't know how matter, forces, energy or almost anything else worked. How did you explain things? through the stories you heard from other people. You didn't know what caused rain, what caused wind, what the stars, the sun and the moon were. 

    And then you study the stars, the night sky, the universe as you see it with your own two eyes. Then what do you see? How does it work? — Use video

    After coming to the geocentric model, share the idea of how silly it is to think that the earth is the center of the universe with what we know now - how vast the universe really is.
    The geocentric model
    •  Geo — Earth
    • Centric — Centred
    • Model — a description of how something works

    Slide 19 - Tekstslide

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    Slide 20 - Tekstslide

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    The geocentric model
    The creators of the geocentric model
    • Plato
    • Aristotle
    • Ptolemy

    • p.s — They weren't idiots, they where the geniuses of their time

    Slide 21 - Tekstslide

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    Plato
    Aristotle
    Ptolemy
    400 BC
    350 BC
    100 AD

    Slide 22 - Tekstslide

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    Proof of the Geocentric model


    Problems in the geocentric model

    Slide 23 - Tekstslide

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    Proof of the Geocentric model
    • The Stars seem to rotate around the Earth
    • The Sun seems to rotate around the Earth
    • The Moon Rotates around the Earth
    • The ground you are standing on is not moving

    Slide 24 - Tekstslide

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    Problem in the Geocentric model

    • Elipses
    • Retrograde motion
    • Not enough evidence — Telescopes and space travel where far from being inveted

    Slide 25 - Tekstslide

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    Proof of the Geocentric model
    • The Stars seem to rotate around the Earth
    • The Sun seems to rotate around the Earth
    • The Moon Rotates around the Earth
    • The ground you are standing on is not moving
    That means — The earth is standing still, and the rest turns around it

    Slide 26 - Tekstslide

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    Slide 27 - Tekstslide

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    Retrograde motion

    Slide 28 - Tekstslide

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    Slide 29 - Tekstslide

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    Next lesson
    • How does retrograde motion work?
    • The heliocentric model

    Homework:
    • Watch the video attached in somtoday
    • Workbook 3.7 — exercise 1 and 2


    Slide 30 - Tekstslide

    Deze slide heeft geen instructies

    Learning goals
      • Describe what the term 'Geocentric model' means

      • Explain how the geocentric model works and how it was formed

      • Name evidence for the geocentric model

      Slide 31 - Tekstslide

      Deze slide heeft geen instructies