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A better approch?

Posted By: Timothy Chow
Date: Tuesday, 3 November 2009, at 5:37 p.m.

In Response To: A better approch? (Tom Keith)

If I have a method that computes the correct answer to a problem, why does it matter whether the method is conceptually correct?

The problem is that the method does not always compute the correct answer, and because there is no conceptual foundation in place, you have no idea when it will be wrong, how much it will be wrong, and why.

I can simplify 16/64 = 1/4 by cancelling the 6's. If you think that was an accident, try cancelling the 9's from 19/95 = 1/5. Shall we teach this method in our schools?

Messages In This Thread

• Confidence Interval Overlap vs Joint Standard Deviation (long)
  neilkaz -- Saturday, 31 October 2009, at 5:13 p.m.
  • Confidence Interval Overlap vs Joint Standard Deviation (long)
    Timothy Chow -- Saturday, 31 October 2009, at 5:30 p.m.
  • Confidence Interval Overlap vs Joint Standard Deviation (long)
    Tom Keith -- Saturday, 31 October 2009, at 5:51 p.m.
    • Confidence Interval Overlap vs Joint Standard Deviation (long)
      Rich Munitz -- Sunday, 1 November 2009, at 3:19 a.m.
  • Confidence Interval Overlap vs Joint Standard Deviation (long)
    Bob Koca -- Saturday, 31 October 2009, at 7:30 p.m.
    • Confidence Interval Overlap vs Joint Standard Deviation (long)
      neilkaz -- Saturday, 31 October 2009, at 9:20 p.m.
      • Confidence Interval Overlap vs Joint Standard Deviation (long)
        Bob Koca -- Saturday, 31 October 2009, at 9:31 p.m.
      • Confidence Interval Overlap vs Joint Standard Deviation (long)
        Timothy Chow -- Sunday, 1 November 2009, at 12:21 a.m.
  • A better approch?
    eXtreme Gammon -- Sunday, 1 November 2009, at 4:02 a.m.
    • A better approch?
      neilkaz -- Sunday, 1 November 2009, at 4:32 a.m.
    • A better approch?
      MaX -- Sunday, 1 November 2009, at 1:19 p.m.
    • A better approch?
      MaX -- Sunday, 1 November 2009, at 1:22 p.m.
    • A better approch?
      Timothy Chow -- Sunday, 1 November 2009, at 5:37 p.m.
      • A better approch?
        eXtreme Gammon -- Sunday, 1 November 2009, at 6:12 p.m.
        • A better approch?
          Bob Koca -- Sunday, 1 November 2009, at 7:36 p.m.
          • A better approch?
            Tom Keith -- Sunday, 1 November 2009, at 8:38 p.m.
            • A better approch?
              Chuck Bower -- Monday, 2 November 2009, at 1:20 a.m.
              • A better approch?
                Jason Lee -- Monday, 2 November 2009, at 2:24 a.m.
                • A better approch?
                  Chuck Bower -- Monday, 2 November 2009, at 3:06 p.m.
              • A better approch?
                Timothy Chow -- Monday, 2 November 2009, at 6:56 p.m.
        • A better approch?
          Maik Stiebler -- Sunday, 1 November 2009, at 10:05 p.m.
        • A better approch?
          MaX -- Monday, 2 November 2009, at 10:15 a.m.
          • A better approch?
            Timothy Chow -- Monday, 2 November 2009, at 6:47 p.m.
            • A better approch?
              MaX -- Tuesday, 3 November 2009, at 8:18 a.m.
          • A better approch?
            eXtreme Gammon -- Monday, 2 November 2009, at 7:26 p.m.
            • A better approch?
              MaX -- Thursday, 12 November 2009, at 12:56 p.m.
        • A better approch?
          Timothy Chow -- Monday, 2 November 2009, at 6:40 p.m.
          • A better approch?
            Tom Keith -- Monday, 2 November 2009, at 7:28 p.m.
            • A better approch?
              Timothy Chow -- Monday, 2 November 2009, at 10:10 p.m.
              • A better approch?
                Tom Keith -- Tuesday, 3 November 2009, at 12:14 a.m.
                • A better approch?
                  Timothy Chow -- Tuesday, 3 November 2009, at 1:29 a.m.
                  • A better approch?
                    Maik Stiebler -- Tuesday, 3 November 2009, at 7:18 a.m.
                    • A better approch?
                      Timothy Chow -- Tuesday, 3 November 2009, at 4:17 p.m.
                      • A better approch?
                        Tom Keith -- Tuesday, 3 November 2009, at 5:23 p.m.
                        • A better approch?
                          Timothy Chow -- Tuesday, 3 November 2009, at 5:37 p.m.
                          • Aren't you two just particpating in the 250 year old fracas?
                            Chuck Bower -- Tuesday, 3 November 2009, at 6:19 p.m.
                            • Aren't you two just particpating in the 250 year old fracas?
                              Timothy Chow -- Tuesday, 3 November 2009, at 7:55 p.m.
                              • Aren't you two just particpating in the 250 year old fracas?
                                Bob Koca -- Tuesday, 3 November 2009, at 8:29 p.m.
                            • Aren't you two just particpating in the 250 year old fracas?
                              Tom Keith -- Wednesday, 4 November 2009, at 12:11 p.m.
                      • A better approch?
                        Maik Stiebler -- Wednesday, 4 November 2009, at 8:40 p.m.
                        • A better approch?
                          Timothy Chow -- Wednesday, 4 November 2009, at 10:09 p.m.
                          • A better approch?
                            Maik Stiebler -- Wednesday, 4 November 2009, at 10:51 p.m.
                            • A better approch?
                              Maik Stiebler -- Wednesday, 4 November 2009, at 11:57 p.m.
                            • A better approch?
                              Timothy Chow -- Thursday, 5 November 2009, at 6:52 a.m.
                              • A better approch?
                                Maik Stiebler -- Thursday, 5 November 2009, at 7:25 a.m.
                                • A better approch?
                                  Timothy Chow -- Thursday, 5 November 2009, at 3:37 p.m.
                                  • A better approch?
                                    Maik Stiebler -- Thursday, 5 November 2009, at 9:19 p.m.
                                    • A better approch?
                                      Maik Stiebler -- Thursday, 5 November 2009, at 9:42 p.m.
          • A better approch? [LONG]
            MaX -- Thursday, 5 November 2009, at 3:04 p.m.
            • A better approch? [LONG]
              Timothy Chow -- Thursday, 5 November 2009, at 3:47 p.m.
            • A better approch? [LONG]
              Maik Stiebler -- Thursday, 5 November 2009, at 10:01 p.m.
              • A better approch? [LONG]
                MaX -- Friday, 6 November 2009, at 3:31 p.m.
                • A better approch? [LONG]
                  Maik Stiebler -- Saturday, 7 November 2009, at 5:52 p.m.
                  • A better approch? [LONG]
                    MaX -- Monday, 9 November 2009, at 12:39 p.m.
                    • A better approch? [LONG]
                      Maik Stiebler -- Monday, 9 November 2009, at 10:59 p.m.
                      • A better approch? [LONG]
                        MaX -- Tuesday, 10 November 2009, at 1:33 p.m.
        • A better approch?
          Tom Keith -- Thursday, 5 November 2009, at 10:23 p.m.
          • A better approch?
            MaX -- Friday, 6 November 2009, at 12:35 p.m.
    • A better approch?
      Bob Koca -- Sunday, 1 November 2009, at 7:45 p.m.
      • A better approch?
        eXtreme Gammon -- Sunday, 1 November 2009, at 10:03 p.m.
        • A better approch?
          Bob Koca -- Sunday, 1 November 2009, at 10:30 p.m.
    • A better approch?
      Mislav Radica -- Monday, 2 November 2009, at 12:59 a.m.
      • A better approch?
        eXtreme Gammon -- Monday, 2 November 2009, at 1:58 a.m.
        • A better approach?
          eXtreme Gammon -- Monday, 2 November 2009, at 2:00 a.m.
        • A better approch?
          MaX -- Monday, 2 November 2009, at 10:19 a.m.
        • A better approch?
          Mislav Radica -- Monday, 2 November 2009, at 12:55 p.m.
          • The different approachs-give us a choice
            Mislav Radica -- Monday, 2 November 2009, at 1:18 p.m.
        • A better approch?
          misja -- Monday, 2 November 2009, at 7:36 p.m.
    • A better approch?
      Neil Robins -- Tuesday, 3 November 2009, at 9:39 p.m.