7. Choosing the Right Tool for the Task
Pencil Computers
Complexity of Tool
Quick Sketches Complex Graphics
Animation
Reproducible
Casual Drawing
Unique Applications
15. Redundancy Principle (Mayer)
Why COM 88’s students
are the best in the world:
* Our participation levels
reach higher and higher
peaks each week
* We’re motivated to help
one another succeed
* We all have cool jobs
and technical findings
* We’re really, really,
ridiculously good looking
* Other classes don’t
come close.
* Go Giants!!!!
* By the way, do you
know what I’m saying
right now?
16. Redundancy Principle (Mayer)
Why COM 88’s students
are the best in the world:
* Our participation levels
reach higher and higher
peaks each week
* We’re motivated to help
one another succeed
* We all have cool jobs
and technical findings
* We’re really, really,
ridiculously good looking
* Other classes don’t
come close.
* Go Giants!!!!
* By the way, do you
know what I’m saying
right now?
How Much People Learn
Voice
Images
Voice
Images
Text
17. Redundancy Principle (Mayer)
Why you should avoid text:
• Audiences learn less
• Cognitive overload
• Verbal channels conflict
• Two slightly different
versions of same message
• Text distracts from images
37. So often, uncomfortable speakers end up making matters
so much worse for themselves. They start off with a lack of
confidence, which manifests itself in their physical delivery.
Because they are unconfident, they may speak softly or
avoid eye contact. They may use a lot of filler words, or
begin stuttering over various words and phrases. Of
course, this poor delivery results in the audiences getting
bored, and then the speaker picks up on that. As speakers
feel that their audiences don’t care about what they have to
say, it only results in sapping their confidence further, which
starts the process all over again.
In order to avoid this, a speaker should always be confident
in him or herself. This will help with delivery and create
positive feedback from the audience.
38. A problem with speaking
– Lack of confidence breeds poor delivery.
– Poor delivery bores audiences.
– Bored audiences sap a speaker’s confidence.
39. A Problem with Public Speaking:
Lack of Confidence
Bored Audiences
Poor Delivery
40. Data that (Visually) Excites
Matt Vassar
December 30, 2022
COM 88: High-Impact Tech Talk
Stanford Continuing Studies Program
41. # of Worms Caught by Hour of Day
4 AM 5 AM 6 AM 7 AM 8 AM 9 AM 10 AM
Robin 10 9 9 5 3 2 0
Sparrow 7 7 6 4 3 1 1
Pigeon 6 5 5 3 2 0 0
Eagle 3 3 3 2 1 0 0
Ostrich 0 0 2 1 0 0 0
Average 5.2 4.8 5 3 1.8 0.6 0.2
42. # of Worms Caught by Hour of Day
4 AM 5 AM 6 AM 7 AM 8 AM 9 AM 10 AM
Robin 10 9 9 5 3 2 0
Sparrow 7 7 6 4 3 1 1
Pigeon 6 5 5 3 2 0 0
Eagle 3 3 3 2 1 0 0
Ostrich 0 0 2 1 0 0 0
Average 5.2 4.8 5 3 1.8 0.6 0.2
43. 4 AM 5 AM 6 AM 7 AM 8 AM 9 AM 10 AM
Robin 10 9 9 5 3 2 0
Sparrow 7 7 6 4 3 1 1
Pigeon 6 5 5 3 2 0 0
Eagle 3 3 3 2 1 0 0
Ostrich 0 0 2 1 0 0 0
Average 5.2 4.8 5 3 1.8 0.6 0.2
Highlight Key Information
# of Worms Caught by Hour of Day
Sparrows can catch worms late in the day