Double Feature CS Talks on September 23 & 24

On Wednesday, September 23, Dr. Ursula Wolz gives a talk on two of her research projects: "Does Learning Computer Science Require a Teacher? Reflections on Automated Tutors and Learning Communities."

On Thursday, September 24, our own Samuel Rebelsky gives a short talk: "Scripting GIMP with Racket."

Both talks are in Science-3821 at 4:15 PM, preceded by refreshment in the CS Commons at 4:00.

Ursula Wolz will be teaching at Grinnell as a Noyce Visiting Professor in Spring 2016. Dr. Wolz is currently involved in two projects, one to create a very robust mechanical tutor using a sophisticated rule base, the other to create face-to-face communities of coders that remove, or at least reduce, the technology divide. She will provide a quick overview of both projects, and then invite stimulating discussion of the major technological and ethical issues involved.

Professor Rebelsky's talk is practice for an upcoming presentation at RacketCon in St. Louis. The GNU Image Manipulation Program, or GIMP, is an open-source alternative to Photoshop. In the early days of GIMP, the designers added a scripting language, Script-Fu, based on Scheme. Over the years, Script-Fu has been superseded by Python-Fu, although Script-Fu remains an option, albeit with a primitive IDE. Over the past few years, my students and I have built a library that allows programmers to script GIMP using Racket and the DrRacket IDE. In addition to providing the “glue” between GIMP and Racket, we also added a library of routines more amenable to novice programmers. In this talk, we will discuss the design of both the “glue” and the broader library. We will also discuss a related introductory course in CS that uses multiple models of image making as the motivating problem domain.

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