Exercise Problems for the book Structure and Interpretation of Computer Programs (2nd).
There is also a course at MIT Structure and Interpretation of Computer Programs.
The Scheme Environment used in this project is Chez Scheme.
For example, if you want to run the file exercise1.1.ss you can enter the following command:
$ scheme exercise1.1.ss -q
The -q parameter will suppress the greeting information printed by the scheme interpreter.