New rendering testing

Alejandro Tejada capellan2000 at
Tue Oct 18 14:15:17 EDT 2011

Hi Jim,

James Hurley wrote:
> Al, 
> The potential for LC in education is two-fold. One is in writing
> educational software and the other is LC as a programming environment. 
> I see the latter as more valuable, particularly for science students.
> FORTRAN  is for the heavy calculations where the programmer must make
> allowances for the computer. LC is for those problems where more
> consideration is given to the programmer over the computer. I remember
> working with a zoologist analyzing the mechanics of the running cheata. I
> did it in LOGO because it was faster to program and easier to obtain a
> graphical representation of the data. The run-time for the program was
> seconds. 
> Like you, I have found that RR has enriched my life, allowing me to work
> out my ideas in a program designed by me to suit that particular idea. 

Yes, we are the "Inventive Users" about which Dan Shafer wrote. :-D

James Hurley wrote:
> Glad you enjoy Nine Ball With Spin. I confess that I may have spent only a
> half hour playing the game. My game was in the programming. (I'm sure that
> is an element for all of RRs aficionados.)  And if you are the type who is
> tempted to cheat at solitaire, I am, then I have a upgrade for you: Nine
> Ball With Projections. It  calculates where the struck ball will go, given
> your selected path for the cue ball, and draws that line showing the
> projected result. You can't miss. Not much fun unless you are failure
> averse. 
>     go url
> "" 

This looks great! The yellow line actually shows the possible
trajectory of the red ball. :-D
Now I only need an Undo menu command to reset the balls
to their last position and be able to play many different shots
from the same position.

Many Thanks again for sharing this game!

Jim, keep up your landmarking work in this area.
I am sure that many physics teachers would
want to use Turtle graphics if they could learn
about it. In the place where I live, many teachers
have read about it, but no one knows how to use it
in their classroom or if it is effective or still relevant today.

Turtle graphics could benefit, greatly, of a makeover to
adapt it technical terms, examples, demostrations and 
student's exercises to the environment of this century.
If you look closely, you will find around you, many people
of different ages that could provide ideas and beta testing.

Today, with so many electronic gadgets created specifically 
to entertain, it should be shocking for the youngest students
to learn that these could be used for learning or "work"...

After reading about the "Gamification" of learning in revUP,
I read again all the articles written by Mark Prensky about
games and learning and I reached a different conclusion,
starting from the same data. 

Right now, I borrowed one of the Pokemon's Guide to their
games and I am taking notes about their strategies and
methods to "engage" (this is the keyword: "engage") their
players to complete their games (and buy more, when available)


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