The DIY enthusiast Ben brought forward a unique approach to build a portable projector using the concept of “persistence of vision” where an image produced by a moving object doesn’t disappear as soon ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. CHICAGO — Before SMART boards and laptops, ...

PowerPoint helps you organize presentation materials, integrate animations into your slides and print handouts for a lecture. With all its functionality, it is a good tool for multimedia presentation, ...

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 ...