[G_Morgan]

UK exams are easy. There's just so bloody many of them and plenty of kids have an irrational fear of exams. It's all about getting higher pass grades each year, separating exams into smaller chunks make passes much easier.

On Scheme. PLT Scheme is probably the nicest implementation. Although I usually take MzScheme (the PLT Scheme interpreter) and run it using Emacs Scheme mode rather than using DrScheme.

The biggest problem with Scheme implementations is that Scheme tries to be as minimalistic as possible and hence many implement their own library sub systems. The new standard (R6RS) solves many of these issues but most of the implementations intend to stick with R5RS.

I've thought about writing an R6RS interpreter but I've got so many half done projects (including a tutorial I've promised for here) that I best not start another until I've cleared some of the back log.

//edit - I'd say PLT is nice because it has a decent library set. More than any other free implementation.//