Whether you give presentations for a living or attend them only at seminars, you've probably sat through hours of digital slides and scenarios, overhead-projector transparencies and bullet points.

Overhead projectors are useful tools to present large visuals in the classroom or boardroom, but poor care and the temperature of the machine cause possible risks to your health and safety. To ensure ...

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A key to keeping students on task is closing their window of opportunity to get off task. And never is that window more wide open than when you turn your back to write on the board. Case in point, my ...