Overhead projectors use a bright lamp and mirrors to display text or images from a transparency sheet on a wall or screen. If your projector displays a shadow when projecting, you must troubleshoot ...

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 ...

(MoneyWatch) For many people, the days of booking a conference room equipped with an overhead projector so you can display content from your laptop are over. Increasingly, you need to show off ...

John McCain has frequently criticized Barack Obama for a $3 million earmark for an "overhead projector" for a planetarium in Chicago. Paul Knappenberger, president of Chicago's Adler Planetarium, ...

UBIT will retire overhead transparency projectors in UB centrally-scheduled classrooms as of Fall 2016. If you’ve never used a document camera in the classroom, now is the time to get acquainted. IT ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. As previously rumored, HP has officially revealed its new, and highly ambitious, Windows 8.1 ...