Which of the following is a benefit associated with the overhead projector?

AThey are relatively inexpensive

BTransparencies can be made relatively quickly

CThey offer the option of writing on transparencies during the class activity

DAll of the above ✓ Correct

Correct answer: (D) All of the above

Explanation

The overhead projector is inexpensive, allows quick transparency preparation and permits writing during class, so all listed benefits hold.

Being relatively inexpensive is a genuine advantage.

Transparencies made quickly is true, as they are easy to prepare.

Writing on transparencies during class supports live teaching.

The OHP lets the teacher face students while projecting, unlike a blackboard.

It projects images from a transparent sheet onto a screen using a lamp and mirror.

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