1. Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick? Why Are These Students Getting Sick?

2. Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick? Why Are These Students Getting Sick?

3. 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?

4. Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick? How? They are wearing jewelry.

5. Why is “DZ” distributed like this? __________ causes “DZ.” Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick? Why?

6. How is “DZ” distributed? They are wearing something red. Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick? How?

7. Why is “DZ” distributed like this? __________ causes “DZ.” Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick? Why?

8. 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?

9. Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick? Hypothesis

10. PathologistDoctor Epidemiologist Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick? Why Are These Students Getting Sick?

11. Population Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick? Epi Talk All the people in a particular group.

12. 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

13. 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

14. 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

15. 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

16. Hypothesis Epi 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

17. Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick? Epi Log Worksheet

18. 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?

19. 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

20. Descriptive Epidemiology Epi 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

21. Investigation 1-1 has ended. Detectives in the Classroom - Investigation 1-1: Why Are These Students Getting Sick? Why Are These Students Getting Sick?