"BOOKS WILL soon be obsolete in schools," Thomas Edison announced in 1913: they would, he believed, soon be replaced by silent films. Each new wave of information technology-radio, television, computers-has led to similar predictions. And each time, the old technologies of books, classrooms and teachers have proved startlingly resilient.Like teachers, digital educational technology comes in many forms, from wonderful to appalling. But, used properly, it now deserves more prominence in schools-especially in poor countries where human teachers are often ignorant, absent or both.
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