I've put together a small program (in FB^3 with PG) that emulates turtle
graphics (a very scaled-down LOGO) to be used to introduce my class to the
concept of a computer program. The turtle responds to just 6 simple
commands and students can write 'programs' to make it draw various designs.
They also develop some geometry concepts along the way.

If anyone is interested in this, e-mail me privately for a copy of the source

- Stu Cram, Regina, SK CANADA