Science teachers come in many varieties, but they share a common goal: to nurture learners. Over the past decade, we have learned a great deal about how to do this effectively. Of all this new (and some not so new) knowledge, what strikes me as most important is that learning occurs best within a context. Still, as obvious as that may seem, it is relatively rare in our high school science classrooms. The problem, of course, is that it is not easy to create a learning experience with hands-on relevance to the science under discussion. Science teachers, in addition to not having the the time,...