Robert Koch general ppt presentation by 40Ol7aWn

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									 starter activity   In the centre of the
                     room are cards relating
                     to the discovery of
                     Germ Theory. Get
                     yourself into teams of
                     6. Each team captain
   Angry germ!       should then find 6
                     different cards, take
                     them back to their team
                     and organise themselves
                     in chronological order
                     as quickly as possible.
                     If any team has less
                     than 6 they will have a
                     10 second head start.
         How important was
           Robert Koch?
 Aims

          To understand the importance of
         Robert Koch in developing ways to
                   study germs
                     Your task
   Either read or listen
    to the interview
    with Robert Koch.
    p. 128.
   Try to guess what
    question he was
    asked each time.
                  Your task
   What answer do you think Koch would give to
    these questions:
   What is your greatest achievement?
   How will your research help people find cures
    for disease?
   What was the most important factor in your
    success?
      Koch’s greatest achievement
   Identified the bacterium caused anthrax
   Other bacteria, e.g. typhoid, TB, cholera identified in
    same way
   Developed a technique to cultivate bacteria and used
    dyes to make them visible
    How Koch’s research will help find
              other cures
   Developed a technique
    for identifying and
    testing the presence of
    germs over several
    generations of animals
   Created a better medium
    for growing bacteria –
    solid medium in Petri
    dishes
   Used a purple stain to
    identify the bacteria
              Secret of his success
   Built on previous knowledge
    (Pasteur & Co.)
   Repeated experiments to
    check results (through 20
    generations of mice)
   Improved testing technology,
    e.g. developing cultures &
    dyes
   Received government
    funding
   Work with a team of
    bacteriologists
                                   Robert Koch, German scientist
                                          in his laboratory
                    Your task
   Read pp. 130-1 very carefully.
   What factors led to the development of the new
    vaccinations?
   Design your own germ and draw it in the centre of your
    page. Around it create a spider diagram identifying the
    reasons why diseases were discovered at this time.
    Include the following categories: observation, new
    technology, medical knowledge, research teams,
    individual genius, chance, governments, warfare, other
    reasons
Reasons for the discovery of diseases
   Observation – P conducted experiments using
    sterile flasks in different locations, identifying
    that particles in air caused decay
   New technologies – K developed better ways of
    growing bacteria & stains to identify them; P &
    K used new microscope developed by Lister
   Medical Knowledge – P called his method of
    immunising chickens against cholera
    ‘vaccination’ after Jenner
Reasons for the discovery of diseases
   Research teams – P used teams of vets &
    doctors; K used teams of bacteriologists
   Individual genius – P said, ‘chance favours the
    mind which is prepared’; he built on Jenner’s
    work
   Chance – chicken cholera solution left exposed
    showed that germs were weakened by exposure
    to air
   Governments – P received money from French
    govt
   Warfare - rivalry between Fr & Germany
    spurred on new discoveries
   Other reasons – better communications;
    pressure to improve agriculture led to anthrax
    vaccine
                   Plenary
   What do you think was the most important
    factor contributing to the development of germ
    theory?
                 Homework
   Use your spider diagram to write an essay of 1
    side of A4 in answer to this question:
   “Why were the causes of disease finally
    discovered in the 1860s and 1870s?”
   Remember to include an introduction, use topic
    paragraphs and reach a conclusion.
   Use detailed evidence from p.128-132.
   Avoid telling the story, but identify factors
               Extension task
   Visit the History Learning website to find out
    more about Robert Koch and Louis Pasteur.
   Write an imaginary interview with Pasteur

								
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