Replacing teachers with technology: Can it be done?
More schools are testing teacherless classrooms that rely on technology to cut costs and keep class sizes low. Some research has found that students who take all or part of their classes online perform better. However, experts also say that some teacher supervision is needed for student-driven virtual lessons to ensure students stay on track. The article states that "adults still have a vital role to play as tutors, mentors, and coaches."
Ferenstein, G. (2011, Feb. 1). Teacher-replacing tech: Friend or foe? Fast Company.
US Dept. of Education. Evaluation of Evidence-Based Practices in Online Learning: A Meta-Analysis and Review of Online Learning Studies.