C32 Mapping Death  DO NOW FOR 2/1/13  Take out your map and open books to page C-12.  HW: None

C32 Mapping Death Today’s Target: I will be able to use the data about cholera deaths to make a hypothesis about how it is spread.hypothesis Check HW Discuss data Readings about Cholera Analysis

Recall O’ Shaughnessy’s description of Cholera’s symptoms Symptoms of cholera - Diarrhea - Fingers bent - Periodic vomiting - Painful cramps - Severe dehydration - Sunken eyes - Black eyelids - Cyanosis (Body turns blue)

C32 Mapping Death What are ways different diseases can be spread?  Cargalon Fever (7 th grade) –  Influenza (the Flu) –  Mononucleosis (Mono) –  Salmonella (Food poisoning) –  Malaria –  The common cold –

C32 Mapping Death State of science:  Germ theory – The idea that bacteria and other microscopic organisms cause illness and disease.  NOT ACCEPTED YET! The prevailing theory about the spread of Cholera at the time:  Miasma – Bad air, smell Living Conditions in 1840’s London:

C32 Mapping Death – John Snow Complete Analysis #4 on the back of your map. Share your answer with someone around you. If they have a good answer add it to yours. Based on the evidence from the mapping of death, our Hypotheses for spreading of cholera are –

C32 Mapping Death – Key Points 1. Scientists formulate and test their explanations of natural phenomena using observation, experiments, and physical and mathematical models.  Ex: Snow’s observations led him to believe that Cholera was not spread by miasma (bad air.) 2. Scientists use appropriate tools and techniques to gather, analyze, and interpret data.  Ex: Snow plotted the deaths of people on _______. This allowed him to see __________ 3. Thinking critically about evidence includes deciding which evidence should be used.  Ex: Snow focused on where people lived as opposed to _______

C32 Mapping Death - Vocabulary 1. Evidence: Observations or data to support a statement, hypothesis, or point of view. 2. Hypothesis: A tentative theory used to explain a set of facts. A hypothesis can lead to further investigation to test whether the hypothesis is valid.

C32 Mapping Death Exit Ticket:  What additional data would John Snow need to prove his hypothesis?

Open Books to page C-15 HW: Complete analysis questions 1 and 2

C33: John Snow and the Search for Evidence Today’s Target: I will be able to research evidence to support John Snow’s hypothesis. Exit Ticket Answers Read Snow’s Theory on Pages C-15 The Cholera epidemic Video – Intro. By Steve Johnson Read pages C-16 through C-19. Complete the table on student sheet 33.1 Answer analysis questions 1 and 2 on page C-20

Satellite Image of London

C33 John Snow and the Search for Evidence Read Snow’s Theory on Pages C-15 The Cholera epidemic Video – Intro. By Steve Johnson Xb4 Xb4 Read pages C-16 through C-19. Complete the table on student sheet 33.1 Answer analysis questions 1 and 2 on page C-20