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PREPARING AN EFFECTIVE SLIDE PRESENTATION

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PREPARING AN EFFECTIVE SLIDE PRESENTATION Powered By Docstoc
					Preparing Effective Scientific
       Presentations
   What can you do to improve your
            presentation?

• Evaluate presentations for clarity,
 organization, and aesthetics.
• If your presentation is not clear to you
 others will also have trouble.
                      Outline


• Suggestions concerning aesthetics
• Cautions concerning animations
• Improve the title
• Insure clarity of data display
• Ending the presentation
                  Layout


• Use horizontally oriented slides
• Words arranged horizontally are easier to
  read
• Vertical and square slides reduce image area
• Don’t waste area on slides
This horizontally oriented picture does not
waste space and is pleasing to the eye.
This vertically oriented picture wastes space.
Don’t put too many words on a slide

                   No
                 more
                  than
      No more than 7 words in width
                 words
                   in
                 height
Note how this vertical orientation is
        difficult to read.

                No
               More
               Than
                 7
               Lines
                 in
               Height
         Suggestions
   For Viewing Pleasure
     • Keep slides simple
• Use a consistent color scheme
    • Lines should be thick
   • Leave space at the edge
Choose Backgrounds That Allow
        Easy Reading

 You can’t go wrong with white or
yellow lettering on dark backgrounds
     Yellow on white is difficult
     to see
    Red on black is difficult to
    see
         Bullets and Lettering

Use bullets to emphasize points and separate
concepts
These bullets are not as effective as simpler
bullets
Use a consistent font and size
DON’T USE ALL UPPER CASE, A
MIXTURE IS EASIER TO READ
                      Outline


• Suggestions concerning aesthetics
• Cautions concerning animations
• Improve the title
• Insure clarity of data display
• Ending the presentation
      Caution About Animations


• Don’t use distracting animations
• Animations can help with the pace of your
  presentation
• Best to be consistent with your animations
• Some fading animations do not translate to
  all versions of PowerPoint
     Keep the Audience Engaged

• Wasn’t that distracting
• The best presentations are interesting to
  everyone
• “Stories” are more interesting than data
  summaries
• Enthusiasm increases audience interest (avoid
  monotones)
                      Outline


• Suggestions concerning aesthetics
• Cautions concerning animations
• Improve the title
• Insure clarity of data display
• Ending the presentation
   Don’t Overlook the Title


• I have seen more bad titles than bad
  papers
• Keep it simple
• Minimize # of Words in the Title
• Try to keep it to 45 Characters Max
• Express one idea
The Title Should Express an Idea

Sniffing Out a Path to Enrichment (not
 informative)
Novel Odors May Enrich the Environment
 of Captive Warthogs (better than above)
Cardiovascular Stints With Shape
 Memory Alloys (too simple)
Cardiovascular Stints With Shape
 Memory Alloys May Prevent Restenosis
  Try to Simplify Complicated Titles


The Effect, if Any, of Two Ketamine Dosages
      on the Rodent Dorsolateral Thalamus
           Through Neuron Apoptosis
Effect of Ketamine on Neuron Apoptosis in
 the Dorsolateral Thalamus of Mice (better)
Effect of Ketamine on Programmed Cell Death
           in the Brains of Mice (best)
       This title also needs help


An Investigation of the Latent Dangers of
    Pressure Treated Lumber: Potential
Incorporation of Arsenic into the Terrestrial
              Trophic System

 Potential Incorporation of Arsenic into
 Terrestrial Environments From Pressure
              Treated Lumber
                      Outline


• Suggestions concerning aesthetics
• Cautions concerning animations
• Improve the title
• Insure clarity of data display
• Ending the presentation
   Data Display can Make or Break a
             Presentation
• Data display is the most important aspect of
  scientific presentation
• Display should promote evaluation of
  objectives/hypotheses
• Figures are usually preferable to tables
• Use tables if the exact values are important
• Very simple comparisons don’t require a
  figure or table
            Format is Important
       PowerPoint Pie Chart Example

               20.4      20.4
                                               1st Qtr
                            27.4               2nd Qtr
                                               3rd Qtr
                                               4th Qtr
                 90


                      Limit pie to 7 wedges
USE LARGE FONT SIZE                      USE THICK LINES
The key can often be eliminated

 PowerPoint Pie Chart Example

    4th Qtr 20.4   20.4 1st Qtr

                      27.4 2nd Qtr


             90 3rd Qtr
Avoid Unnecessary Complexity
                       Availability of Brood and Nesting Habitat in Each
                                      Managed Area in 2006
                       100%
                        90%
  Percent Classified




                        80%
                        70%                                                Classified
                        60%                                                as "Brood"
                        50%                                                Classified
                        40%                                                as "Nest"
                        30%
                        20%
                        10%
                         0%
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                                                     Managment Areas
               Don’t present raw data

Without transmitter 22 MPH    With transmitter   17 MPH
Without transmitter 21 MPH    With transmitter   17 MPH
Without transmitter 17 MPH    With transmitter   20 MPH
Without transmitter 15 MPH    With transmitter   17 MPH
Without transmitter 19 MPH    With transmitter   11 MPH
Without transmitter 18 MPH    With transmitter   12 MPH
Without transmitter 16 MPH    With transmitter   11 MPH
Without transmitter 23 MPH    With transmitter   18 MPH
Without transmitter 25 MPH    With transmitter   18 MPH
Without transmitter 14 MPH    With transmitter   17 MPH
Without transmitter 11 MPH    With transmitter   12 MPH
Without transmitter 21 MPH    With transmitter   15 MPH
Even after simplification these raw data
        are difficult to interpret
          Without Trans.   With Trans
               MPH         MPH
                22          17
                21          17
                17          20
                15          17
                19          11
                18          12
                16          11
                23          18
                25          18
                14          17
                11          12
                        Which is Better?

                    Mean Flight Speed of Quail With and
                           Without Transmitters
Flight Speed




               30
               20
               10
                0
                             Trans    W/O Trans

  With Transmitters                  Without Transmitters
  15.4 MPH                           18.5 MPH
              Which is Better?


• In this case the difference is more interesting
  than either number (you don’t need a figure
  or table):
• Average flight speed of Quail w/o
  transmitters was 4.9 Km/hr faster than Quail
  with transmitters.
• The difference is statistically significant
  (t=2.24, P=0.02).
          More Complex Data


 These data represent the proportion of
 insects in the diets of male and female
North American and European Kestrels (a
          figure would be better)
More complex data are best illustrated
           by a figure
                     80
 % Insects in Diet

                     70
                     60
                     50
                     40
                     30
                     20
                     10
                     0
                          NA Males   NA Fem   EU Males   EU Fem

                                     Winter       Spring
      What Type of Figure is Best?

• Pie charts, bar charts, linear figures, and
  scatter plots are commonly used
• Use figures which most clearly illustrate a
  conclusion
• Do not use linear figures unless points along
  the lines are related
• Make sure the dependant and independent
  variables are on the proper axis
This figure illustrates a point

PowerPoint Pie Chart Example

   4th Qtr 20.4   20.4 1st Qtr

                     27.4 2nd Qtr


            90 3rd Qtr
This Pie is Difficult to Interpret
                               StrainA
        Too many slices        StrainB
                               StrainC
                               StrainE
                               StrainF
                               StrainG
                               StrainH
                               StrainI
                               StrainJ
                               StrainK
                               StrainL
                               StrainM
                               StrainN
                               StrainO
                               StrainP
 Use figures that are easy to interpret


120
100
 80                                         East
 60                                         West
 40                                         North
 20
  0
      1st Qtr   2nd Qtr 3rd Qtr   4th Qtr
           Line Graphs Can Simplify
                 Comparisons
       Use lines only when points are related

100
80
                                                  East
60
                                                  West
40
                                                  North
20
 0
      1st Qtr   2nd Qtr     3rd Qtr     4th Qtr

                     Limit to 2 or 3 lines
                       Simplify scales
                Use bold high-contrast colors
Make Figures Easy to Interpret
                       Availability of Brood and Nesting Habitat in Each
                                      Managed Area in 2006
                       100%
                        90%
  Percent Classified




                        80%
                        70%                                                Classified
                        60%                                                as "Brood"
                        50%                                                Classified
                        40%                                                as "Nest"
                        30%
                        20%
                        10%
                         0%
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                                                     Managment Areas
Make Figures Easy to Interpret
                          Availability of Brood and Nesting habitat in Each
                                         Managed Area in 2007
                      100%                                                  Classified as
                       90%                                                  "Brood"
 Percent Classified




                       80%                                                  Classified as
                       70%                                                  "Nest"
                       60%
                       50%
                       40%
                       30%
                       20%
                       10%
                        0%                                        t
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                                                  Managment Areas
                           This figure is too complicated
                      80
% Habitat Available




                      60
                      40
                      20
                       0
                             A   B    C     D     E       F     G     H
                                  2006b   2007b   2006n       2007n
                       Nesting Habitat in 2006 and 2007

                      40
% Habitat Available




                      30
                      20
                      10
                       0
                           A   B   C     D     E       F   G   H
                                       2006n   2007n
                      Outline


• Suggestions concerning aesthetics
• Cautions concerning animations
• Improve the title
• Insure clarity of data display
• Ending the presentation
        Ending The Presentation

• End with a summary slide
• Relate conclusion to original objectives
• Don’t forget acknowledgements

				
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posted:8/9/2011
language:English
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