This article reports the impact of a field experience in problem-based (PBL) and project-based learning (PjBL) on in-service teachers' conceptions of experiential learning. Participants had been enrolled in a hybrid class that included an online component in which they learned about PBL and PjBL, and an experiential component in which they…

Project CAVES (Creative Adventures and Valuable Experiences through Spelunking) is a summer residential program for gifted high-school students, involving lectures, surveying and mapping simulated caves, and exploring and surveying actual caves in Arkansas. The project's development and learning activities are described. (JDD)