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Visual Aids

Visual Aids. Objective. Audio Visual preparation and delivery PowerPoint projection system Overhead projection system Advantages of AV supported teaching Improves comprehension and retention Standardises training. Learning Theory. Short attention span Poor listeners.

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Visual Aids

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  1. Visual Aids

  2. Objective • Audio Visual preparation and delivery • PowerPoint projection system • Overhead projection system • Advantages of AV supported teaching • Improves comprehension and retention • Standardises training

  3. Learning Theory • Short attention span • Poor listeners

  4. Learning through our senses

  5. Retention of Information

  6. Developing the Presentation • Research, analyse and prioritise information • Need to know vs. nice to know • Meaningful logical sequence • Keep it simple • Condense • Six words per line, six lines per slide

  7. Types of Visual Aid • Presentation • Blackboard, whiteboard, flipchart • Data/slide/overhead projectors • Interaction • Blackboard, whiteboard, flipchart • Overhead projector • Demonstration • Equipment • Resuscianne

  8. Data Projectors • Lightweight • Compact • Transportable • Affordable

  9. Red Image Green Image Blue Image How Does it Work? White light split into Red, Green and Blue (RGB) components Lamp LCD panels

  10. How Does it Work? Projected Image Lens RGB Recombined

  11. Data Projector Features • Brightness and contrast • Resolution • Video input • Audio input and speakers • Keystone correction

  12. Data Projector Features • Lens • Wide – position at or near podium • Long – position at back of room or ceiling mount • Ceiling mount • Remote control

  13. Using a Data Projector • Familiarise yourself with controls • Position computer • Check connections • Switch on projector first

  14. Using a Data Projector • During the Lecture • Know which keys advance and reverse the presentation • Black slides for short pauses • Standby for long breaks • After the Lecture • Allow projector to cool down before packing • Ensure all cables etc. are packed correctly

  15. Transmitted Light Overhead Projectors • Two Types Reflected Light

  16. Transparency (OHP) Film • Laser/Copier Film • Print or copy • High heat tolerance • Inkjet inks will not stick • Inkjet Film • Gelatin like coating • Will melt in laser or copier • Expensive • Write-on Film • Do not use for main lecture slides • Use for feedback and overlays

  17. Summary • Theory and benefits of AV systems • Developing a presentation • Condensing Information • Types of visual aid • Theory and use of data projection systems • Overhead projectors • OHP Films

  18. Questions?

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