Conclusion cont.

practitioners towards innovation - one of the most important forms of power that is exercised in the diffusion of innovation. Finally, differences between media and technology use in poor urban schools and middle-class schools can be understood best by examining financial issues through the lens of power.

Decisions about the uses of time in the classroom represent another manifestation of power issues. At the individual level, teachers must invest an adequate amount of time necessary for effective training, and must use the limited resource of time in the classroom to include media literacy into the curriculum. The most time-consuming aspect of media literacy, student hands-on media production, is a substantial challenge for teachers in terms of the demands placed on teachers' skills, limited time, and limited financial resources for technology, equipment, and support. Strategies for managing these limited resources represent a form of creativity that is most needed for the field to develop in the future.

Because substance abuse prevention and violence prevention have been supported at the federal level, health teachers and those responsible for substance abuse prevention education have received more staff development opportunities than teachers in the disciplines and subject areas of the arts and humanities. Opportunities for cross-disciplinary work between health prevention and other fields represents an important way not only to build deep roots into the daily life of the classroom, but to balance the differential access to resources available for K-12 teachers.