Hype surrounding the promise that technology has for education began with Thomas Edison in 1913, when he predicted that the motion picture would end the need for textbooks and revolutionize schools. Years later a phase of development was fueled by government funding, and the educational film industry reached a heyday following World War II, which…

Contemporary changes in pedagogy point to the need for a higher level of video production value in most classroom video, replacing the default video protocol of an unattended camera in the back of the classroom. The rich and complex environment of today's classroom can be captured more fully using the higher level, but still easily manageable,…

Capabilities and biases of learning technologies are examined in light of four widely accepted principles: deep content knowledge, dialogue, agency, and collaboration. Software that supports these principles must focus students' attention on ideas rather than topics or tasks and should foster high levels of "epistemic agency," providing students…