In the online environment, students and instructors are virtually, but not physically, present in the same environment. In the online environment, technology mediates learning: it mediates communications and information transfer between the student and the instructor, between the student and the content, and among the students. Critics fear that…

As digital tools proliferate and improve, solid instruction in the basics will eventually become "flat"--available anywhere globally--and the elements of excellent teaching that are most difficult for technology to replace will increasingly differentiate student outcomes. As a result, teacher effectiveness may matter even more than it…

A few school administrators in Clovis, California, began a quest to introduce online high school courses in their school district, believing it might cost less to teach classes online than it would to teach students face to face in a classroom. They figured instead of having one teacher fielding a load of 150 students per course, an online course…