The new common core standards in mathematics do not allow conversations between "systems." You either work in customary units or SI units. That said, the standards treat both "systems" equally. It's an improvement!
Sent from my iPad On Dec 26, 2013, at 12:50 PM, "Robert H. Bushnell" <[email protected]> wrote: > 2013 Dec 26 > I also think the math test is not useful. I have been urging > use of SI metric since before the official name was invented. > I worked with Louis Sokol as he got USMA started and I can not > pass the test unless I look up the prefixes. So, do not tell > it to CGPM (or NIST). They set the official sizes and meanings > but general users decide which to use. > > I have trouble with deci which comes to me in decibel. > I try not to use centimeter. It leads to mistakes in US > manufacturing because we still use inch which is of similar > size in general life. > > We need to get schools to give up teaching "conversion" and > comparison. Go straight to SI metric, no inch-pound units while > teaching metric. > > Get Congress to act. > Robert H. Bushnell >
