Problem based learning : mystery disease / written by Mark A. Bohland ; illustrated by Stephanie O'Shaughnessy ; [edited by Dianne Draze and Sonsie Conroy].
With this problem-based learning unit, students become public health workers as they track down the source of a mysterious illness. The activities combine science, social studies, math, research, group collaboration, and communication as students work in teams to solve the problem and present their findings.