On Nov 28 , at 1:49 PM, Robert H. Bushnell wrote:
> Conversion from inch-pound units to metric
> units may be used as examples in algebra.
There is no good reason to teach conversion from inch-lb to metric.
Conversion is a useful skill (at the algebra level and above) but can be
learned without introducing Olde English measures.
For example:
from kilometres per hour to metres per second,
from cubic metres to litres,
from grams per litre to kilograms per cubic metre,
from tonnes to kilograms,
millilitres per bottle to litres per case
(where the number of bottles in a case is given),
from kilowatts to joules per second
(or kilowatt-hours to joules),
from dollars per litre to cents per millilitre,
and the like.
That will teach the skill of conversion so that, if at some time in the future,
the students are faced with a problem involving Olde English units (or any
other), they will be able to apply this skill to that archaic situation (even
converting from Olde English units to metric if that should arise).
Regards,
Bill Hooper
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