Worcester Polytechnic Institute (WPI)

 

Assessing Learning

David E. Pritchard

Cecil and Ida Greene Prof. of Physics, MIT

Historically, assessment was primarily summative – a test to determine the level of proficiency of an applicant, student, or a class.  To improve educational outcomes (and not just for No Child Left Behind) we must determine which activities in a particular course are responsible for any observed learning.  We describe new research that shows how assessment can measure learning (as opposed to proficiency).  In particular we’ll show examples that address: “Are students learning?”  “If so, from which learning activity?”  “What activity is most detrimental to learning?” and “Which parts of the tutoring work best?” These studies were based on data collected as students worked through problems in the online web-based tutorial program, MasteringPhysics.  We will also discuss with the audience, “What should be teaching?”

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David E. Pritchard graduated from Caltech (B.Sc.  1962) and Harvard (Ph.D. 1968).  Employed since then in the physics department at MIT, he has pursued research in atomic, optical, and molecular physics and physics education. Pritchard was a pioneer in the study of the mechanical forces of light on atoms that lead to the Nobel Prize in physics in 1997 being awarded to Bill Phillips (his former postdoc), Steve Chu (a collaborator), and Claude Cohen-Tannoudji. The 2001 Nobel Prize in physics was awarded to Pritchard’s former postdoc Wolfgang Ketterle who took over Pritchard’s cold atom research program when he became as assistant professor at MIT.

Pritchard has a life-long interest in teaching problem solving in physics.  In the 1970’s he authored a Mechanics Workbook, a programmed instruction manual for Newtonian mechanics..  He also has a large collections of puzzles and paradoxes in physics and has taught a 10-hour course in this many times during MIT’s January Independent Activities Period.  He also collects “physics for lunch” problems, each one of which typically puzzles beginning graduate students for a lunch period.  His interest in teaching people to solve problems led to the collaboration with his son, Alex on CyberTutor, an interactive web-based program which is dramatically superior to written homework in raising students’ test scores.  It has been refined by the company Pritchard and his son started (masteringphysics.com) and is now owned by Pearson Education and marketed as Mastering Physics (and more recently General Chemistry and Astronomy).  This past year nearly 100,000 students used this learning tool in physics d(and another 95,000 in Astronomy and Chemistry).  He is the undergraduate major coordinator for physics undergraduates, and has won the MIT Dean’s award for teaching and advising.

 Host: Janice Gobert 

Refreshments will be served.