Today's Sun has a interesting, and I feel true, observation about the teaching of math in the K-12 grades.
Personally, I think the problems began when calculators replaced the slide ruler, and I am not being funny here. With a slide ruler one had to know the "realm" of the correct answer. With a calculator, all that is needed is to write down the answer the screen provides. (Too often, students do not critique information provided by the various "screens," available. What is shown on the TV, the computer or alas, the calculator, is considered gospel, regardless of origin.) As a college professor, I can attest to the problem first hand.
Read what professor Ganem at Loyola University, Maryland has to say about it by clicking on the following link:
http://www.baltimoresun.com/news/opinion/oped/bal-op.math02nov02,0,1068320.story
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