Hello Gary,
  You may want to complement the usage of learning environments with
some material or ideas from the David Taylor's "Object Technology"
book (forget about the "Manager's Guide" part of the title, it is a
good reading for everyone involved in object technology).

http://www.amazon.com/Object-Technology-Managers-David-Taylor/dp/0201309947/ref=sr_1_1?ie=UTF8&s=books&qid=1243701038&sr=1-1

  There is another useful lecture called "A Smalltalk for Students: A
giant step to studentkind"

http://homepages.ecs.vuw.ac.nz/~tk/publications/papers/smalltalk.pdf

  And a lot of resources for teaching, in the Pedagogical Patterns
Project site here:

http://www.pedagogicalpatterns.org/

  Finally, a "Recommendations for teachers" section is a must read,
the paper is called "An effective approach to learning
Object-Oriented" and it was written by two very experienced teachers
in object technology:

http://www.lifia.info.unlp.edu.ar/~casco/papers/ecoop98.html

Cheers,

Hernán

2009/5/29 Gary Dunn <osp at aloha.com>:
> I am planning an introductory course in Smalltalk for high school students. This will be starting from scratch; no previous programming experience required. The goal is to be able to create self-made personal software.
>
> To this end I have been working through The Laser Game Tutorial and Squeak by Example. Neither seem right for beginners.
>
> Can anyone recommend any other books or teaching materials? Maybe a successful syllabus?
> --
> Gary Dunn, Honolulu
> osp at aloha.com
> http://openslate.net/
> http://e9erust.blogspot.com/
> Sent from a Newton 2100 via Mail V
>
>