detectives in the classroom - investigation 1-1: why are these students getting sick? why are these...
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Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick?
DZ
DZ
DZ
DZ
Why Are These Students Getting Sick?
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Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick?
DZ
DZ
DZ
DZ
Why Are These Students Getting Sick?
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How is “DZ” spread out in the class?
Is there a pattern?
What do “DZ” students have in common?
Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick?
How?
How is “DZ” distributed?
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How is “DZ” distributed?
Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick?
How?
They are wearing jewelry.
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Why is “DZ” distributed like this?
__________ causes “DZ.”
Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick?
Why?
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How is “DZ” distributed?
They are wearing something red.
Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick?
How?
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Why is “DZ” distributed like this?
__________ causes “DZ.”
Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick?
Why?
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Hypothesis
If you think you might know the answer to a question, you can state the answer as if it were a fact and call it a hypothesis.
An educated guess, based on observation or reasoning, that can be tested or supported or refuted through investigation.
An educated guess.
Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick?
Why Are These Students Getting Sick?
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Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick?
Hypothesis
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Pathologist Doctor
Epidemiologist
Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick?
Why Are These Students Getting Sick?
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Population
Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick?
Epi Talk
Epi Talk
All the people in a particular group.
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Clue
Something that helps to solve a problem or mystery.
Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick?
Epi Talk
Epi Talk
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Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick?
Disease Detectives
Detectives
Investigate crimes
Look for clues at a crime scene
Judge quality of evidence
Form hypotheses
Identify suspects
Present evidence in court
Help control crime
Epidemiologists
Investigate diseases
Look for clues in the community
Judge quality of evidence
Form hypotheses
Identify suspected causes
Present evidence in scientific journals and at scientific meetings
Help control disease
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Epidemiology
The study of how and why diseases or other health-related conditions are distributed in a population the way they are; in other words, why some people get sick and others do not.
Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick?
Epi Talk
Epi Talk
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Disease Distribution
The pattern of how a sickness is spread out among a group of people.
Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick?
Epi Talk
Epi Talk
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HypothesisEpi Talk
An educated guess.
An unproven idea, based on observation or reasoning, that can be tested or supported or refuted through investigation.
Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick?
Epi Talk
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Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick?
Epi Log Worksheet
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Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick?
Epi Log Worksheet
Is my description of the distribution of “DZ”
accurate?
Do I appreciate the uncertainty of my
hypothesis?
Are my hypotheses logical? Do they make sense?
Am I willing to consider hypotheses that are different from
my own?
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Epidemiologist / Disease Detective
An investigator who studies the occurrence of disease in populations of people for the purpose of preventing or controlling health problems.
Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick?
Epi Talk
Epi Talk
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Descriptive EpidemiologyEpi Talk
Study of the distribution of a disease or other health-related condition.
Basis for formulating hypotheses.
Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick?
Epi Talk
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Investigation 1-1 has ended.
Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick?
Why Are These Students Getting Sick?