gleem
Science Advisor
Education Advisor
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DrClaude said:I actually sometimes use the low-tech version of this: projecting directly on the whiteboard and complementing with handwriting.
Another hybrid approach is to us a document camera to project a graphic image . Like the old fashion overhead projector You can then write on the graphic if you wish. Placing a clear film over the graphic will prevent the graphic from being permanently marked. This has an advantage in hand drawing graphs, or which might be easier/quicker than using a drawing program.
One advantage of the document camera is that you can face the audience as you write.
I feel the necessity to annotate (add additional information to) the graphic to keep the attention of the audience. Writing as opposed to presenting another slide with the same information paces the presentation so the audience is not rushed to try and absorb it. Apparently the effective use of slides as an educational tool varies according to the instructor, the audience, and the subject. In case you haven't Google "use of slides in teaching" for advice and opinions on their use and effectiveness .