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. Students predict the source of the outbreak. Students study victim cards and work on locating the source of contamination. Allow students 20 minutes to study the victim cards and mark their maps.
Students study victim cards and mark their maps.
Prompt students who have not yet begun marking their maps. Students continue working. Ask students if any group has located the source of the outbreak. If the groups are unable to locate the source of the outbreak using the victim cards, give them a set of clue cards. Once all groups are finished marking their maps and have found the source of the outbreak, discuss their findings.