What are pieces of transparent film that contain information for group viewing called?

Slides are pieces of transparent film that contain images or information and are typically projected onto a screen for group viewing. This makes them an effective visual aid in teaching and presentations, as they allow the instructor to share detailed information with an audience in a clear and engaging manner.

Slides often consist of illustrations, graphs, or text that enhance the presentation, making it easier for viewers to grasp complex ideas or concepts. They are particularly useful in classroom settings where visual aids can enhance learning and retention. Other options, such as charts, posters, and handouts, serve different purposes; for instance, charts are usually static graphics that present data in a visual format, posters are large printed sheets meant for display, and handouts are typically distributed to provide supplementary information for individual study.