![]() However, as education marches with technology, more teachers are conducting lessons with the aid of presentation software programs. ![]() These older methods are still being used and very useful in certain topics or certain teaching methods. ![]() The old chalk and blackboard method can be considered a presentation. Just few years ago, several teachers used acetate slides meant to be placed on an overhead projector. ![]() Few decades ago, teachers are using big manila papers or cartolina with handwritten text and illustrations, meant to be embedded on the board. ![]()
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