3. It allows us to more fully explore the context of science in our society (Lewis, 2003, and Herreid, 2005). It is a productive way to add pertinence and relevance to the facts and concepts taught in science classes. As an example, Susan Lewis provides some outstanding science issues in her article, Issue-Based Teaching in Science Education and certainly Clyde Freeman Herreid makes a very strong case for relevancy in his article entitled, Using Case Studies to Teach Science.