Re: [Phys-l] presentation graphics (was whiteboarding ...)

[Leon de Oliveira <leondeolive@gmail.com>]

If you wanted to make a document camera, you could always use a webcam and
point it at a blank paper. It might not be enough resolution for printed
text but for graph sketching and diagramming it should work out fairly
well. They also work out much cheaper than a full blown document camera. It
depends on your use.

As far as handing out whiteboard to groups of students, I have yet to find
a better way to display 6 sets of lab results without crowding the WB in
front of the room or having to flip through them on the over head ( either
LCD or incandescent). It makes it much easier to compare results when they
are all lined up around the room. We can easily ask why one graph is
different than the rest. I find having one screen and one projector the
limiting factor in displaying student work for discussion.

On Sun, Apr 29, 2012 at 7:44 PM, Paul Lulai <plulai@stanthony.k12.mn.us>wrote:

> Sorry to say it, but I've never loaded a slide projector.
> You can use the opposite approach with students regarding the images.
>  Once we are done discussing real images vs virtual images, we discuss how
> the image might appear in the projectors that we use.  How might the image
> appear within a lcd projector, at different points within a traditional
> projector (that I kept for optics units) etc... Kids find that to be pretty
> neat.
>
> Have a good one.
> ________________________________________
> From: phys-l-bounces@www.phys-l.org [phys-l-bounces@www.phys-l.org] on
> behalf of Richard Tarara [rtarara@saintmarys.edu]
> Sent: Sunday, April 29, 2012 7:25 PM
> To: Forum for Physics Educators
> Subject: Re: [Phys-l] presentation graphics (was whiteboarding ...)
>
> For better or worse, overhead projectors are going the way of slide
> projectors and 'real' blackboards.  Almost none of my students had ever had
> to load a slide projector, therefore the experience of 'upside-down and
> backwards' is completely lacking and is no longer of use in teaching image
> formation.  The document camera may well be the way to go--this is about to
> happen in our largest classroom.  One supposedly can do just about the same
> things one does with overhead transparencies under the document camera
> including having prepapared sheets and sheets to write one.  One advantage
> is that one can show pages from books and magazines without having to scan
> them and print them onto the transparencies.  I suspect in another 5 years,
> even professional meetings will have few if any overheads available.  ;-)
>
> Rick -- who does use PowerPoint a lot (easy to save and retrieve) but
> using black text on plain white backgrounds.  Many books now provide
> instructors with most of the figures from the book in PP format (and yes
> some still provide overheads--but for how much longer?)
>
> R.W.Tarara
> Professor of Physics
> Saint Mary's College
>
> free instructional physics software
> www.saintmarys.edu/~rtarara/software.html<http://www.saintmarys.edu/%7Ertarara/software.html>
>
>
> ----- Derek Chirnside <derek.chirnside@gmail.com> wrote:
> > My favourite teaching technology (after the photocopier) has become
> > "obselete"
> > Replaced by datashow + lousy PowerPoint.
> > Hence my hare-brained thought of document camera.
> >
> > -Derek
> >
> > > <snip>
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