[MWForum]Creating Fraction Materials

[Lauren Pacini]

Wendy!

You are absolutely right! I was half asleep when I did
that!!

Lauren

--- Wendy Petti <wpetti@mathcats.com> wrote:

> Hi Lauren,
> 
> Yes - the joy of MicroWorlds!
> 
> Remember the solution is even simpler than you've
> made it, because if you
> know you want 20 slices, you don't need to write
> (and I'm not sure I
> understand the logic of)
> 
> repeat (360 / 20) + 2
> 
> Instead, you know you want to repeat the step 20
> times, so you know you want
> 
> repeat 20
> 
> (The reason for using rt 360 / 20 inside the
> brackets is to let the computer
> do the math to figure out how many degrees the
> turtle will turn for each of
> those 20 slices.  Of course, sixth-graders can also
> do that math themselves
> if you prefer.)
> 
> (And also, as I noted before, of course you'll need
> to experiment to get the
> size of circles you need.)
> 
> And one more thing:  you'll notice I used fd 0 in my
> code.  I know that
> might seem strange but it really does make a
> one-pixel dot when you write fd
> 0!  So there is no real advantage to turning the
> turtle, telling it to move
> forward and back one pixel, then turning it again. 
> If one command can do
> the work of 4 commands, why not?  But since the
> students themselves will be
> developing the code, you might show them alternate
> approaches (without
> supplying the whole solution of course) and let them
> choose.
> 
> I love that your older students will be making
> something practical for the
> younger students, in the context of a meaningful
> learning experience for
> both groups.  By the way, you can print the fraction
> pieces directly onto
> stiff colored paper, such as the stock used for
> printing report covers at a
> copy shop, using a different color for each pie.
> 
> I would love to have members of the MWForum share
> some other cross-age
> MicroWorlds projects... or brainstorm some more
> ideas that might be worth
> trying, whether or not anyone has actually done so.
> 
> Wendy
> 
> 
> > Now I will see where the students decide to try to
> go
> > with this! The joy of Microworlds! ...
> 
> 
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