GEN: need a attention signal instrument

[Johanna Halbeisen <johanna@MASSED.NET>]

For some years to get a whole class's attention, I have used a hand up and
a loud voice counting (with questionable effectiveness).   I am looking for
something that would make a high-pitched note or sound, carrying over
voices.  I'd also like to find something small enough to be able to be
carried in an apron pocket.  I can't see blasting a police whistle (altho
it fits the description).  Has anyone used something for this purpose that
you'd recommend?

---------------------
Johanna Halbeisen
Woodland Elementary School (preK-4)
80 Powder Mill Rd.
Southwick, MA 01077
johanna@massed.net

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-==-=
All postings to LM_NET are protected under copyright law.
To quit LM_NET (or set-reset NOMAIL or DIGEST), send email to:
listserv@listserv.syr.edu   In the message write EITHER:
1) SIGNOFF LM_NET 2) SET LM_NET NOMAIL or 3) SET LM_NET DIGEST
4) SET LM_NET MAIL  * Please allow for confirmation from Listserv.
For LM_NET Help see: http://ericir.syr.edu/lm_net/
Archives: http://askeric.org/Virtual/Listserv_Archives/LM_NET.html
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=