Rarely do outdoor educators get the opportunity to safely incorporate an avalanche while the topic of the day is actually avalanche awareness and forecasting. Many similar possibilities exist in the expeditionary context, but even brief excursions may result in incredible learning experiences. These "teachable moments" occur regularly in the context of recreation and experiential programs outdoor, environmental, and adventure education, as well as service learning. In this article, the author highlights teachable moments as a class of learning activities and outlines theory process and application. (Contains 1 table.)