Cisco in a recent white paper, Video: How Interactivity and Rich Media Change Teaching and Learning, presents the benefits of video in the classroom:
Establishes dialogue and idea exchange between students, educators, and subject matter experts regardless of locations.
Lectures become homework and class time is used for collaborative student work, experiential exercises, debate, and lab work.
Extends access to scarce resources, such as specialized teachers and courses, to more students, allowing them to learn from the best sources and maintain access to challenging curriculum.
Enables students to access courses at higher-level institutions, allowing them to progress at their own pace.
Prepares students for a future as global citizens. Allows them to meet students and teachers from around the world to experience their culture, language, ideas, and shared experiences.
Allows students with multiple Learning styles and abilities to learn at their own pace and through traditional models.