Under enormous pressure to reform, the nation's public schools are spending millions of dollars each year on devices that technology companies promise can raise student performance. Increasingly, though, another view is emerging, reports the Washington Post: that the money schools spend on instructional gizmos isn't necessarily making things better, just different. Many academics question industry-backed studies linking improved test scores to their products. And some go further, arguing that the most ubiquitous device-of-the-future, the interactive whiteboard, locks teachers into a 19th-century lecture style of instruction than runs counter to the more collaborative, small-group models that many reformers favor. On its...

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    staff and wire services reports