Try
http://lamar.colostate.edu/~hillger/supplies.htm
about the second item down. Those are 20 cm long, not 30 cm. They have
millimeter markings on one side and centimeter markings on the other side.
Jim
--
James R. Frysinger
632 Stony Point Mountain Road
Doyle, TN 38559-3030
(C) 931.212.0267
(H) 931.657.3107
(F) 931.657.3108
On 2011-06-22 16:39, Robert H. Bushnell wrote:
2011 June 22
USMA
I just tried to buy rulers without inches for school students to use.
I found none. Staples here in Boulder has none. The manager said in
his ten years he has never had anyone ask for rulers without inches.
The big hardware here in Boulder, McGuckin, has none. They have
carpenter's tapes 3 m and 5 m, but they all have inches along with mm.
Please tell me where I can get rulers without inches.
I have USMA 200 mm rulers. They are OK with me. Is there no other
retail source? School rulers are 12 inches long. I do not know
if schools need 300 mm.
Having inches along with mm on the ruler always keeps the inch value
in front of you as you use the ruler. This is a strong impediment
to leaving inches behind. If one is to use metric, inches simply
must never show up.
Please help.
Robert Bushnell