2007/3/28, Luc Maranget <luc.maranget@inria.fr>:
> > So here are a few questions:
> > -> Is lexical scope that important when learning pure functional
> > programming?
> > -> Are environments helpful (even the slightest bit) when teaching
> > lexical scope?
> > -> Where does this idea come from? I have not read a single book, as
> > single article nor blog talking about environments.
> > -> How can we teach lexical scope? Is there a simple solution, the
> > kind of a first year student can understand in less than an hour?
>
> An attempt to answer your question 1.

OK, It was about the implementation of first class function in a
Pascal like language.

Personally, I think environments are about the implementation of
lexical scope, not  its specifications. Therefore, teaching them in
the first year of a programming course is premature. I may be wrong,
so I am trying to verify that.

Loup