[LON-CAPA-users] Help entering answers

lon-capa-users@mail.lon-capa.org lon-capa-users@mail.lon-capa.org
Tue, 30 Jan 2007 09:43:02 -0800

The following list or resouces, although not revised very recently, contain
information which should suffice for various purposes.	They were tailored a
little to meet the immediate needs of specific courses.  Possibly the last
one might be of general use for chemistry courses of various levels. While
there may be one or two outdated claims made in these pages, and they may
not contain complete information, I believe that there is nothing in them
that is particularly detrimental.  The chem111 pages are intended to keep
the amount of info to a minimum. The others give more options and details.

For example, while the system no longer is as stringent about spaces as it
originally was, I still think it does not hurt to tell the student that
there should be a space between the number and the units.

I prefer to suggest to students to use the "E" type sci notation because it
is briefer and also because in the 2.1*10^-12 type notation students often
forget to include the ^.  They then get an error message about invalid
units, which confuses them.

I have thrown in a couple of pages about sig figs and rounding as well, even
though no-one asked for that.  Chemists might like those, but physicists
almost certainly will not.   :-)

As far a




On Tue, 30 Jan 2007 07:31:37 -0500 lon-capa-users@mail.lon-capa.org wrote:
> There are a number of them. See
> /res/fsu/ng/2053c-winter2003/units.html
> Ray Batchelor at sfu also has one but I cannot find it.
> -hk
> At 02:56 AM 1/30/2007, you wrote:
> >Is there any help page (for students) on entering answers in 
> >scientific notation with units in lon-capa?
> >
> >Lars.
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Ray Batchelor
Senior Lecturer
Department of Chemistry
Simon Fraser University
Burnaby, BC
V5A 1S6