Tutorial: Giving Good Presentations and Presentation Practice - - PowerPoint PPT Presentation

Tutorial: Giving Good Presentations and Presentation Practice

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audience purpose

• ccasion

You begin preparing a scientific presentation by analyzing your constraints

what they know why they are there to inform to persuade time room

*

To excel in your scientific presentations, you guide
 your audience up the mountain of your work

Orienting audience at the start Keeping audience


• n the path

Appreciating
 the view

[Alley, 2013]

Slides influence the preparation, delivery, and understanding of a scientific presentation

[estevejobs.com]

A key assumption is that slides are needed
 for that part of the presentation

The scope and depth of a talk are interwoven 
 because only so much time exists to give details

unknown Scope Depth

Success involves defining a valuable scope 
 and a satisfying depth

unknown Valuable Satisfying

Many scientific talks fail because the scope is too broad

Scope Unsatisfying depth

Many scientific talks fail because the depth is too deep

unknown Too narrow Overwhelming

Success involves defining a valuable scope 
 and a satisfying depth

unknown Valuable Satisfying

[Alley, 2013]

Scope Depth

An important part of the beginning is selecting 
 an appropriate entry point

[TED.com]

Atmospheric Mercury Depletion Events (AMDEs) in Polar Regions During Arctic Spring

Stuart Apple, Kerry Cho, Dale Gray

Environmental Engineering Department 22 October 2011

A common error in the beginning of scientific talks 
 is to leave the audience behind

Determining Whether Atmospheric Mercury Goes 
 into Surface Snow after a Depletion Event

Katrine Aspmo Torunn Berg

Norwegian Institute for 
 Air Research

Grethe Wibetoe

University of Oslo, 


• Dept. of Chemistry

June 16, 2004

Event Ny-Ålesund

A common error in the mapping of scientific talks 
 is to show a list that is not memorable

[Alley, 2013]

This talk traces what happens to mercury after it depletes from the atmosphere in arctic regions

Environmental implications Measurements from Station Theory for mercury cycling

*

To excel in your scientific presentations, you guide
 your audience up the mountain of your work

Keeping audience


• n the path

[Alley, 2013]

Background Material prepares the audience for the work

pre-combustion methods post-combustion methods combustion methods

The assertion–evidence structure consists of a message headline supported by visual evidence

scent source

The way a dog sniffs does not contaminate 
 the vapor stream from the scent source

[Settles et al., 2002]

scent source

The way a dog sniffs does not contaminate 
 the vapor stream from the scent source

[Settles et al., 2002]

The first step is to write a sentence headline that states
 the main message of the slide

sentence headline

The second step is to find or create visual evidence 
 that supports the sentence headline

visual
 evidence

[Alley, 2013]

A data acquisition system changes the form of the data A digital acquisition system has to sample at a rate
 fast enough to retain the shape of the analog signal

Analog-to-Digital Converter Measurement
 Device

Digital Acquisition System Sampling

• Vibration measured by accelerometer

– Analog voltage produced – Sinusoidal shape

• Analog signal converted to digital signal
• Signal sampled at a specific rate
• Rate → high enough to retain analog shape

A digital acquisition system has to sample at a rate
 fast enough to retain the shape of the analog signal

Analog-to-Digital Converter Measurement
 Device

Since its construction in 1952, traffic across the bridge
 has grown exponentially

1952 1.1 million vehicles

[Maryland Transportation Authority, 2007]

Since its construction in 1952, traffic across the bridge
 has grown exponentially

1961 1.5 million 1952 1.1 million

[Maryland Transportation Authority, 2007]

Since its construction in 1952, traffic across the bridge
 has grown exponentially

1961 1.5 million 1952 1.1 million 2007 27 Million

Normalized friction factors and Nusselt numbers correlated

• ur data with the data of others

Reynolds Number Nuo, fo Twall Tinlet Heat Flux, q˝ h Nu Tbulk Pressure Drop Friction Factor, f

2

2

bulk air h tap

u x D dP f ⋅ ⋅ Δ ⋅ ⋅ = ρ

4 . 8 .

Pr Re 023 . ⋅ ⋅ = Nu

2 .

Re 046 .

−

⋅ = f

air h

k D h Nu ⋅ =

Pressure Taps Thermocouples Venturi Meter Voltmeter

At typical highway speeds, overcoming drag requires 
 about two-thirds of a truck engine’s output

Aerodynamic Drag CD = 0.6 Rolling Friction 
 and Accessories

2004 Indian Ocean Tsunami: Gleebruk Village, Sri Lanka Before

Tsunamis cause devastating destruction, 
 especially to sparsely vegetated areas

After

[homepage.mac.com/demark/]

Sparse Sparse Sparse

≠

Treat what you’re going to say and the slides as separate but complementary tools. Spend as much, if not more, time on what you’re going to say and let that guide your slides.

*

To excel in your scientific presentations, you guide
 your audience up the mountain of your work

Appreciating
 the view

[Alley, 2013]

A common error in the endings of scientific talks 
 is to waste the last slide

[Alley, 2013]

Adsorbed HOAc allows 
 the growth of siderite A thick siderite layer protects 
 the steel from corrosion

Questions? In summary, high concentrations of acetic acid
 help protect steel from corrosion

Steel

Fe3+x O4-y FeCO3

Some Specific Tips from Ten Secrets to Giving a Good Scientific Talk (Do not make a slide like this) http://www.cgd.ucar.edu/cms/agu/scientific_talk.html

1) Prepare your material carefully and logically. Tell a story. The story should have four parts: (a)Introduction (b) Method (c) Results (d) Conclusion/Summary.

• The Introduction should not just be a statement of the problem - but it should indicate your motivation to solve the

problem, and you must also motivate the audience to be interested in your problem.

• The Method includes your approach and the caveats.
• The Results section is a brief summary of your main results.
• The Conclusion/Summary section should condense your results and implications.
• Good speakers often broaden the Introduction to set the problem within a very wide context.
• Good speakers may also add fifth item: Future Research.
• There is a crusty old saying among good speakers that describes a presentation from the communication viewpoint:

"Tell'em what you are going to tell'em. Tell'em. Then tell'em what you told'em." (It is OK to repeat). 2) Practice your talk. 3) Don't put in too much material. 4) If you have to show an equation - simplify it and talk to it very briefly. 5) Have only a few conclusion points. 6) Talk to the audience not to the screen. 7) Avoid making distracting sounds. 8) Polish your graphics. Here is a list of hints for better graphics:

• Use large letters (no fonts smaller than 16 pts!!)
• Keep the graphic simple.
• Use colour.
• Use cartoons I think some of the best talks use little cartoons which explain the science.

9) Use humour if possible. A joke or two in your presentation spices things up and relaxes the audience. It emphasises the casual nature of the talk. I am always amazed how even a really lame joke will get a good laugh in a science talk. 10) Be personable in taking questions.

• First, repeat the question.
• Be honest and humble.
• If you don't know the answer then say "I don't know, I will have to look into that.

A couple miscellaneous points

• Thank you - It is always a good idea to acknowledge people who helped you, and thank the people who invited you to

give a talk.

• Dress up
• Check your viewgraphs before you give the talk.
• If you have an electronic presentation - check out the system well before the talk.

Also Check Out: http://eloquentscience.com