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  2. Chalkboard eraser - Wikipedia

    en.wikipedia.org/wiki/Chalkboard_eraser

    A chalkboard eraser is a special type of eraser specifically used to erase chalk markings on slating paint (used on chalkboards and slates ). It is most commonly made of felt strips attached to a handle. Chalkboard erasers are typically broad and rectangular, intended to clear large areas for new content as part of a lecture or presentation.

  3. Microsoft PowerPoint - Wikipedia

    en.wikipedia.org/wiki/Microsoft_PowerPoint

    Archived from the original on October 8, 2015. Retrieved August 25, 2017. Microsoft PowerPoint, virtual presentation software developed by Robert Gaskins and Dennis Austin for the American computer software company Forethought, Inc. The program, initially named Presenter, was released for the Apple Macintosh in 1987.

  4. PowerPoint karaoke - Wikipedia

    en.wikipedia.org/wiki/PowerPoint_karaoke

    PowerPoint karaoke. PowerPoint karaoke, also known as battledecks or battle decks, is an improvisational activity in which a participant must deliver a presentation based on a set of slides that they have never seen before. [1] Its name is derived from Microsoft PowerPoint, a popular presentation software, and karaoke, an activity in which a ...

  5. Chalkboard art - Wikipedia

    en.wikipedia.org/wiki/Chalkboard_art

    Chalkboard art or chalk art is the use of chalk on a blackboard as a visual art. It is similar to art using pastels and related to sidewalk art that often uses chalk. Chalkboard art is often used in restaurants, shops or walls. Chalkboard art has also been done on large boards while storytelling on beaches and in Churches.

  6. Tips for Dealing With Colorblindness In Every Day Tasks - WebMD

    www.webmd.com/eye-health/living-with-color-blindness

    General Tips. For help on several fronts, you might want to: Ask about special contact lenses or glasses. They won’t solve every problem or make you see normally, but check with your doctor to ...

  7. Blackboard - Wikipedia

    en.wikipedia.org/wiki/Blackboard

    Uses. Reusable writing surface on which text or drawings are made. A blackboard or a chalkboard is a reusable writing surface on which text or drawings are made with sticks of calcium sulphate or calcium carbonate, known, when used for this purpose, as chalk. Blackboards were originally made of smooth, thin sheets of black or dark grey slate stone.

  8. Audiovisual education - Wikipedia

    en.wikipedia.org/wiki/Audiovisual_education

    Audiovisual education. A professor using an LCD projector as an instructional aid. Audiovisual education or multimedia-based education ( MBE) is an instruction method where particular attention is paid to the audiovisual or multimedia presentation of the material to improve comprehension and retention.

  9. Overhead projector - Wikipedia

    en.wikipedia.org/wiki/Overhead_projector

    Overhead projector. An overhead projector (often abbreviated to OHP ), like a film or slide projector, uses light to project an enlarged image on a screen, allowing the view of a small document or picture to be shared with a large audience. In the overhead projector, the source of the image is a page-sized sheet of transparent plastic film ...

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