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| In lugnet.robotics.edu, Danny Staple wrote:
> Rafe Donahue wrote:
>
> > The figures, unfortunately and arguably incorrectly,
> > show the [wrong lengths]
Dang. Yes, they do... and I'm ashamed to say I've known about those for some
time, and neither myself nor several other folks never picked up on that. Drat.
> > They can learn to count starting at zero
Since that's the way numbers work, that's how I'd teach (more to the point
that's how I *have* taught this - 3-4-5 (& other) triangles like this entered
the piture long before studless parts. I've also used the 1.5-2-2.5 version of
this.
> > I might suggest using 'stud' as a unit...
> ...maybe Lego should borrow the "LDU"...
I don't have a big problem with using "m" or "modulus" (confusion with meters is
possible... but, sadly, perhaps only for kids in Europe, where they would also
realize immediately how silly that was). As to "stud" or "LDU", well... there
are no studs (even if we adults know they are the same thing, distance-wise),
and LDU is longer. Personally, I'll still call them studs (or even just a
unitless number... "hey can you hand me that 12 long axle?").
--
Brian Davis
| | | | | | | | | | | | | On Sat, 2006-10-07 at 12:26 +0000, Brian Davis wrote:
> I don't have a big problem with using "m" or "modulus" (confusion with meters is
> possible... but, sadly, perhaps only for kids in Europe, where they would also
> realize immediately how silly that was). As to "stud" or "LDU", well... there
> are no studs (even if we adults know they are the same thing, distance-wise),
> and LDU is longer. Personally, I'll still call them studs (or even just a
> unitless number... "hey can you hand me that 12 long axle?").
Hmm I generally use a unitless number when working with Lego here.. But
I do remember having it drilled into me at school how bad that is, we
had a math teacher who used to bounce up and down red in the face when
people failed to mention the units.
I forgot they still use old imperial units over the pond.. Do they
actually still teach using those in schools? Isn't SI on the curriculum
over there?
Danny
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