Archive

Posts Tagged ‘graphics’

Edward Tufte Presidential Appointment

March 8th, 2010 Jack McShea No comments

THE WHITE HOUSE Office of the Press Secretary
FOR IMMEDIATE RELEASE, March 5, 2010:

“President Obama Announces More Key Administration Posts

Edward Tufte, Appointee for Member, Recovery Independent Advisory Panel
Edward Tufte is Professor Emeritus of Political Science, Statistics, and Computer Science at Yale University. He wrote, designed, and self-published The Visual Display of Quantitative Information, Envisioning Information, Visual Explanations, and Beautiful Evidence, which have received 40 awards for content and design. He is a Fellow of the American Academy of Arts and Sciences, the Guggenheim Foundation, the Center for Advanced Study in the Behavioral Sciences, the Society for Technical Communication, and the American Statistical Association. He received his PhD in political Science from Yale University and BS and MS in statistics from Stanford University.”

From ET:

“I will be serving on the Recovery Independent Advisory Panel. This Panel advises The Recovery Accountability and Transparency Board, whose job is to track and explain $787 billion in recovery stimulus funds:

‘The Recovery Accountability and Transparency Board was created by the American Recovery and Reinvestment Act of 2009 with two goals:To provide transparency in relation to the use of Recovery-related funds.
To prevent and detect fraud, waste, and mismanagement.
Earl E. Devaney was appointed by President Obama to serve as chairman of the Recovery Board. Twelve Inspectors General from various federal agencies serve with Chairman Devaney. The Board issues quarterly and annual reports to the President and Congress and, if necessary, “flash reports” on matters that require immediate attention. In addition, the Board maintains the Recovery.gov website so the American people can see how Recovery money is being distributed by federal agencies and how the funds are being used by the recipients.

Mission statement: To promote accountability by coordinating and conducting oversight of Recovery funds to prevent fraud, waste, and abuse and to foster transparency on Recovery spending by providing the public with accurate, user-friendly information.’

I’m doing this because I like accountability and transparency, and I believe in public service. And it is the complete opposite of everything else I do. Maybe I’ll learn something. The practical consequence is that I will probably go to Washington several days each month, in addition to whatever homework and phone meetings are necessary.”

http://www.edwardtufte.com/bboard/q-and-a-fetch-msg?msg_id=0003e0&topic_id=1#

Rating 3.00 out of 5
[?]
Categories: Media Tags: , , ,

The Dynamics of Confusion – or- When More Isn’t Better

November 1st, 2009 Jack McShea No comments

Needles and haystacks and suchGeorge Siemens at elearnspace mentioned a remarkable site called Indexed in a recent blog post. Indexed author Jessica Hagy uses mathematical metaphors in sketches of relationships that span topics from consumption and arrogance to expectations, communications and perception. Hagy claims in her About page that Indexed “… is a little project that allows me to make fun of some things and sense of others without resorting to doing actual math.” To be fair to all the mathphobes out there, the mathematics is rather mild and, more to the point, Hagy’s adept skill at using Venn diagrams and xy-graphs reminds me of what must be one of the primary objectives we all face when creating technical graphics:  transform complex observations and relationships into simple and appealing visual designs. A good graphic after all is a data compression scheme. It’s no wonder then that it’s often easier for many people to remember the graphic than the explanatory text.

I wonder if the relationship between confusion and information is really parabolic? Hmm….

Rating 3.00 out of 5
[?]
Categories: Philosophy Tags: , , ,

Do Graphics Matter?

June 15th, 2009 Jack McShea No comments

mm_learning

Although I find that teaching the history of a subject is often a big help in understanding its present state, recent reseach from Amsterdam suggests that using illustrations (drawings and diagrams) in the teaching of history might have no positive effect on learning. Dr Maaike Prangsma and associates looked at the effectiveness of using various illustrations in the teaching of history and found that no discernible differences could be found in test results between illustrated and plain text presentations immediately after the instruction was delivered or six weeks later. Interestingly, the students did say that on the whole the graphics made the learning easier, leading investigators to conclude that the illustrations might enhance the efficiency of the training. The British Psychological Society’s report on the study claims that:


“The key finding was that the nature of the learning task made no difference to learning outcomes. The plain text version appeared to be just as effective as the versions involving a diagram, drawings, or combination of the two. The researchers were surprised by this result and offered a number of possible explanations. For example, perhaps the initial text on the fall of the Roman Empire was so effective it undermined any possible differential effects from the learning tasks. Or perhaps graphics aid science learning because there are clear rules about what different signs and symbols mean, whereas history lacks these conventions and the students therefore didn’t know how to use the visual aids.”

In agreement with a basic philosophical tenet underlining this blog, the authors of the study concur that garnering a positive appreciation of the subject matter presented is not to be ignored:

“The goal of educational motivation is not only to make learning more efficient … or effective … but also to make learning more pleasant such that the affective learning experience is more satisfying and learners will want to learn more.”

Further information concerning this study can be found in rewiew here.

Prangsma, M., van Boxtel, C., Kanselaar, G., & Kirschner, P. (2009). Concrete and abstract visualizations in history learning tasks. British Journal of Educational Psychology, 79 (2), 371-387 DOI: 10.1348/000709908X379341

Rating 3.00 out of 5
[?]

The Danger of Gratuitous Animation

June 11th, 2009 Jack McShea No comments

Researcher Stephen Mahar of the University of North Carolina, Wilmington, and his colleagues have tested the effect of routine garden-variety animations on the learning of new concepts. Often used by presenters and designers in classrooms and training sessions, these stock slide show animations commonly found in programs like PowerPoint might have a negative effect on student learning.

The team used two versions of a presentation prepared in Microsoft PowerPoint, one with animation, the other without. Students were shown one version of the presentation and tested for comprehension and recall. Apparently, recall of static graphics was much better resulting in higher test scores among the group using non-animated presentation. There are some questions concerning what precisely was being animated (that is, why was animation employed?) and what was the nature of the animation? Further, Mahar et al. go on to suggest that the animation acted as a distraction rather than an enhancement given the nature of the material being presented (factual and “incremental”). Mahar and et. conclude that although the animations were received well by the audience, the benefit to learning is not only missing, it is counter-productive.

The researchers caution that the study evaluated teaching new concepts and it is possible that training more akin to a procedure, method or technique might prove a better match for animated graphics. A follow-up study is planned.

A report of this study is published in the International Journal of Innovation and Learning (“The dark side of custom animation” in Int. J. Innovation and Learning, 2009, 6, 581-592 ). See also: “Less is More When Developing PowerPoint Animations.”

Rating 3.00 out of 5
[?]