Discuss how detectives map crimes and how they try to find common characteristics among victims and crime scenes. Explain how scientists act in a similar manner to trace contagious disease outbreaks. The teacher should make copies of the map, victim cards, and clue cards. The teacher should also provide students with colored marking pens or pencils. Discuss what Hepatitis A is and how it is spread.
Students listen and ask questions.
Divide students into groups of three to four. Students divide into groups. Give each group a map and a set of marking pens. Have each student predict the source of the outbreak. Tell each group that they are to use the victim cards and the map to locate the source of the Hepatitis A outbreak.