I'll admit that there aren't many topics I'm more passionate about than interactive whiteboards in the classroom.

Seen as the first step towards "21st century teaching and learning," schools and districts run out and spend thousands of dollars on these gizmos, hanging them on walls and showing them off like proud hens that just laid the golden instructional egg.

I gave mine away last summer. After about a year's worth of experimenting, I determined that it was basicall...