Understanding Diagrammatic Ink in Lecture Richard Anderson, Ruth Anderson, Crystal Hoyer, Craig Prince, Fred Videon, Steve Wolfman FSS 2004 Slides designed.

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, anderson@cs.washington.edu

Ruth Anderson, ruth@cs.virginia.edu