Re: Is "dolist" three chili peppers hard?

[Bob Gorman <bgorman@xxxx>]

At 10:20 PM 10/29/2001, you wrote:
> Well, that is what I'm trying to clarify:
>
> Is "dolist" three chili peppers hard?
>
> ... specially considering many people consider tail recursion
> as very easy to understand (less than three chilis I suppose)...
>
> ... and specially considering other lenguages, most of them, tend
> to present looping, ala "dolist", way before procedure nesting
> and way before recursion?
>
> Daniel

No concept is hard if presented in the right sequence, and in a mode the 
learner can understand.

Dale's recent post shows a site with visual explanations of statistical 
concepts.
http://www.lionhrtpub.com/orms/orms-4-01/education.html


Brian's post "Lists" has quite a few recommendations, and about 6 mo. ago 
there was a thread about lists in the LogoForum.

I'll add 2 slightly different comments.

1. Remember the passion-risk taking-reflection process, well make sure 
passion is in place first. I use puzzles a lot. Pick puzzles that require a 
list to solve, & let them sweat a while before helping them find "lists". 
Different puzzles will help them appreciate how versatile lists are.

The earlier thread about listing the prime factors of 360 was great, it had 
several different approaches - something which should always be shared with 
students to encourage flexible thinking & re-thinking!

2. The gshow routines might be helpful, especially for visual learners like 
myself.

Bob
P.S. Another of my "some day" projects is to go thru my 30 or books of math 
puzzles, and list for each puzzle the cognitive leap or aha that is needed 
to solve it. Then by sequencing the puzzles by the concepts needed to solve 
them, we could generate an entire math curriculum that wouldn't be boring!

"To create New Answers; you must ask New Questions."
- Bob Gorman
http://www.kncell.org