Non projected teaching aids are materials that can be seen directly without the help of projection devices. Charts,models and posters fall in this category because students view them as they are. They are widely used for visual support in lessons. Therefore,the stem correctly refers to non projected teaching aids.
Option A:
Non projected aids are simple,low-cost and effective for illustrating concepts,so classifying charts and models in this group is appropriate.
Option B:
Projected aids require equipment such as LCD projectors to display images and are not necessary for static charts or physical models.
Option C:
Community based aids draw on local people and places for learning experiences,rather than on classroom-made charts.
Option D:
Digital aids involve electronic resources and devices,which are different from traditional charts and models mentioned in the question.
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