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Understanding Diagrammatic Ink in Lecture
Richard Anderson, Ruth Anderson, Crystal Hoyer, Craig
Prince, Fred Videon, Steve Wolfman
FSS 2004
Slides designed with minimal text
Introduce classroom environment
Describe study – empirical analysis of lecture archive
Diagram use in the wild
Identify properties of diagrams
Challenges for analysis
Simple example
- Irregular shapes
- Cryptic labels
- Attentional ink
Similar style, different instructor
Analyze example with respect to applications
Static summary
Student note taking
Closer look – challenge of identifying structure based on multiple lines
Phasing in diagrams
More examples of phasing
Locality in diagrams – inconsistent meaning of ink
In discussion some of the ink is ignored
Top arrows: “Not there”
Separate wins indicated together
Attentional ink issues
Ink that is both iconic and attentional
Challenge of distinguishing attentional (A) from diagrammatic (B)
Ink that changes meaning: check marks next to 1, 2, 3, become Locks
Opportunistic use of ink
For more information
http://www.cs.washington.edu/education/dl/presenter/
Richard Anderson, [email protected]
Ruth Anderson, [email protected]