Gunther Abrahamson (1926–2016)

Gunther Stent

nervous system is choosing highly valued options, a rational maneuver; but the valuation on the drugassociated cues is pathologically high. So loosely, one might see this as a diminished will — a lowered capacity to choose behavioral options not leading to drugs, but resulting from bad valuations of cues associated with drugs. The mechanisms that make the choice conditioned on the valuation app...

Dor Abrahamson – PME - NA 2007 Handling Problems

Fifty 4 th -17 th -grade students participated in individual interviews oriented toward probabilistic intuition. Participants were given a boxful of equal numbers of green and blue marbles, mixed, and a device for scooping 4 ordered marbles and asked to predict the most common sample. Students replied that the outcome with the highest relative frequency would have 2 green and 2 blue marbles. Th...

Gunther von Hagens' Plastination Technique

Plastination is a technique for preserving tissues, organs, and whole bodies for medical purposes and public display. Gunther von Hagens [4] invented a form of the method in 1977 at Heidelberg University in Heidelberg, Germany, after he observed medical students struggle working with cadavers that quickly decomposed. Von Hagens' body models, called plastinates, have since become widely used edu...

Dor Abrahamson – Promotion Review Fall 2010

The following text offers overviews of the two dominant strands in my educational research on mathematical cognition and instruction: learning theory and design theory. An introductory section will first explain how these two research strands are related dialectically within the design-based research approach. Following, each of the strands will be treated separately. These treatments will high...

Conference on Inverse Problems in Honor of Gunther Uhlmann