Education expert Diane Ravitch recently addressed the Computer-Using Educators conference in Palm Springs, Calif., saying that education technology can help improve teaching and learning. Ravitch warned, however, that some could view education technology as a solution to eliminating teachers and saving money. "Some advocates of online instruction say it will make possible reductions of 30% of today's teaching staff," Ravitch said. "The bottom line [for some] is profits, not students."

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