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Visualizing is…
Making a picture in your mind
A reading strategy
A way to help you understand what you read
An important tool for reading fiction and nonfiction
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Here are three reasons:
Visualizing helps us to process
text more actively. Because we
have to use our prior knowledge
to visualize, we are reading more
carefully
Visualizing can help you to figure
out what is going on in the story
Visualizing is fun!
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What is Information
Visualization?
Visualize: to form a mental image or
vision of …
Visualize: to imagine or remember as if
actually seeing.
American Heritage dictionary, Concise Oxford dictionary
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What is Information Visualization?
“Transformation of the symbolic into the geometric”
(McCormick et al., 1987)
“... finding the artificial memory that best supports our
natural means of perception.''
(Bertin, 1983)
19. The depiction of information using spatial or
graphical representations, to facilitate
comparison, pattern recognition, change
detection, and other cognitive skills by making
use of the visual system.
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Information Visualization
Problem:
– HUGE Datasets: How to understand them?
Solution
– Take better advantage of human perceptual system
– Convert information into a graphical representation.
Issues
– How to convert abstract information into graphical
form?
– Do visualizations do a better job than other
methods?
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Purposes of Information
Visualization
To help:
Explore
Calculate
Communicate
Decorate
22. What have we learned?
Visualizing is an important reading strategy
We need to use the author’s clues and our
own prior knowledge to build a mental
image
Everyone builds unique mental images
Authors leave clues to let us know when
our prior knowledge will not be a help
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