Martin, Please explain what you mean by "geometric instruments" and at what age (or grade) level they should be employed in education about SI.
Gene. ---- Original message ---- >Date: Tue, 8 Feb 2011 19:32:21 -0000 >From: "Martin Vlietstra" <[email protected]> >Subject: RE: [USMA:49798] Re: STEM metric foundation in America Proposal >To: <[email protected]>, "'U.S. Metric Association'" <[email protected]> > >I suggest that millimeters should be introduced as part of teaching the use >of geometric instruments. > >-----Original Message----- >From: [email protected] [mailto:[email protected]] On Behalf >Of [email protected] >Sent: 08 February 2011 02:40 >To: U.S. Metric Association >Subject: [USMA:49798] Re: STEM metric foundation in America Proposal > >Great idea, Tim. Use the STEM and "Competitiveness" initiatives to promote >SI. >The "kits" must be appropriate for grade level. i.e. Different contents! >NIST standard SP 811 is *free* and should be included, at least for High >Schools. >The centimeter *is appropriate* for early elementary pupils as Jim asserts. >The millimeter is best for industry, but not for elementary education. >You include "mass sets" with the balances. Fine! But "weight" sets >contradict a resolution by the CGPM that "weight is a force" not identical >with mass. >Gene Mechtly. >...
