How Schools Use Document Cameras
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a visualiser or document camera is the modern day successor to an overhead projector. The difference being that there is no more falling asleep as the lights dim for the overhead projector presentation. A visualiser is something that catches and holds the attention of everyone in the class.
Like its predecessor, the document camera magnifies and displays small images such as graphs and photographs on a wall or screen so that large audiences can view them. However the big difference lies in the fact that the document camera can project 3d images of objects rather than just a flat shadow.
Occasionally you will find visualisers referred to as a camera on a stick. In a way they are right because it is a effectively a video camera that is on a stick that holds it in place above the object you want to be projected and displayed.
If you were to take a seashell and place it on the screen of a document camera, a 3d image of this seashell would be magnified and projected so that your audience could see the seashell in fine detail. Similarly, if you were to place a book or an essay in front of the camera, students would be able to read the words easily.
In schools, the document camera is a noteworthy addition to the AV equipment cupboard. Seeing objects in such great detail holds the attention of students far more easily than a shadowy outline and causes less disruption than a seashell being passed around the room for everyone to see and touch.
Also, if a teacher should choose to, he or she can perform tasks in front of the camera that can be seen easily by the whole room. For most subjects, being able to actually show students how a task is done rather than writing it theoretically on a blackboard is of great value.
Buying a visualiser is quite an investment for a school, but a worthwhile one. It makes the whole teaching process much easier for a wide range of subjects and can really help children to learn what would otherwise be difficult concepts to grasp.
Article Source: Articlelogy.com
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