Changes in the way visual aids have been designed over the years. Starting with textual slides commonly used on overhead projectors, through early powerpoint with color and clip art, to more modern highly graphical slides with one idea per image.

1. Graham Young
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3. There are three key aspects to having a healthy
life:
1) Eating good healthy food to ensure your body
has the right fuel
2) Participating in regular exercise to keep fit and
maintain muscle tone
3) Going to bed early and having enough sleep to
be refreshed in the morning

4. With colour, fonts and the omnipresent
“Clip Art”

5.  High quality minimally processed food
 Feed your body with the right fuel
 Regular Exercise
 Tone your body with an exercise regime
 Consistent sleep
 Refresh your body with ample rest

6. Images became more available

7. QUALITY FOOD EXERCISE SLEEP
Feed your body with
the right fuel
Tone your body with
an exercise regime
Refresh your body
with ample rest

8. One Idea per Slide
Minimal Text

9. Quality Food

10. Exercise

11. SLEEP

12. Visual Aids should add to what the
presenter says, not repeat it
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