What is it about small groups that make them so powerful? The answer is straightforward: Groups tend to solve problems better than even the brightest individuals because "many hands make light work," and "two heads are better than one." This is especially true when the groups are diverse and individuals act somewhat independently. In this month's…

Activities using the same historical case study can be designed for courses of varying degrees of proficiency by altering the format to suit each academic level. The case of Isidro Mejia, a construction worker who had six nails accidentally shot into his head from a nail gun, is the basis for a series of case study exercises. (Contains 4 figures.)