# [plt-scheme] Question on Teaching Scheme with DrScheme

>*
*>*
*>*On Thursday 31 October 2002 16:30, Lear, Russell wrote:
*>*
*>*
*>>*Not sure if this is a reasonable request, but here goes...
*>>*
*>>*My 12 year old daughter was looking over my shoulder while I was working on
*>>*something in DrScheme. She asked questions so we went over the arithmetic
*>>*operations and did some simple function definitions (computing the area of a
*>>*circle and using that to compute the volume of a cylinder). She bought into
*>>*the lisp notation surprisingly quickly.
*>>*
*>>*Anyway, she's pretty excited over this and wants to learn more. Are there
*>>*any resources people know of on teaching kids simple programming? "Scheme
*>>*and the Art of Computer Programming" wasn't written with 12 year old kids in
*>>*mind!
*>>*
*Take a look at the turtles teachpack. It is very easy to make nice
drawings quickly with it.
For instance:
(turtles)
(repeat 10
(draw 100)
(right 160))
Where I cheated a little. Put these in a seperat teachpack:
; Names taken from COMAL
; (which I was taught in Danish elementary school when I was a kid)
(define forward draw)
(define (right a)
(turn (- a)))
(define left turn)
(define-syntax repeat
(syntax-rules ()
[(repeat n body ...) (let loop ([m 10])
(if (= m 0)
(void)
(begin
body ...
(loop (- m 1)))))]))
I used a set of homegrown macros and defines like
(define frem forward) ; frem is the danish word for forward
to make an easy turtle language in Danish. I used it one day a bunch of
potential students visited our school and I had the responsibility to
show them
that "we have computer science". I think (knock on wood) that the idea was a
success.
--
Jens Axel Søgaard