On 2011-02-07 22:14, Robert H. Bushnell wrote:
201 Feb 7 Tim, 1. You have an error in the cost of item 1) The error is in line d. (which you list as c.) 1000 x $280.00 is $280,000.00, not $2,800,000.00.
2. For the classroom kit item 1) you show 30 cm rulers. Society should generally avoid centimeter. Centimeter is too coarse a unit and does severe damage in commercial use and to efforts to get rid of inch-pound units. I recommend that item 1) be 300 mm rulers.
For crying out loud, when is this anti-centimeter bigotry going to stop ? Centimeters are very useful everyday units that are widely used in metric countries. Just because they are not appropriate for engineering & planning drawings doesn't mean they aren't useful in more everyday activities.
200 mm rulers from USMA show 20 cm on the back (without millimeter marks). This is a mistake and is useful only for first grade teaching to count. We do not need to contaminate measurement with centimeter. Counting can be taught with other tools.
The mistake would be not teaching the metric system fully, and have people come out of school with a half-assed knowledge of the metric system, and not knowing what a centimeter is.
Also, you are missing the opportunity to draw the parallel between centimeters/meters and cents/dollars - a 'metric' measure that every American is familiar with.
THE CENTIMETER IS A PERFECTLY VALID AND COMMON MEASURE OF LENGTH. STOP TRYING TO PRETEND IT DOESN'T EXIST.
(By the way, if you're going to be this picky, you shouldn't write 280,000.00 either. It should be either 280 000.00 or 280 000,00)
-- Tom Wade [email protected]
