Ken Kahn is a senior researcher at the Oxford University Computing Services leading the Modelling4All project that combines ideas of accessible modelling within a web 2.0 community. It builds upon the prior Constructing2Learn Project.
He is working part-time in the Metafora Project at the London Knowledge Lab. He is working on making a web version of eXpresser that integrates well with the Metafora system and tools.
Ken recently piloted an OLPC Project in West Papua.
He is the designer and developer of ToonTalk a programming system for children that provides concrete analogs of advanced computational abstractions with a video game look and feel. Many of his papers can be found here.
Ken did his doctoral research in at the MIT AI Lab in the 1970s. During the 1980s he did research in AI, visual, and concurrent programming languages before focusing on programming languages for children.
Here is his resume.