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Channel Talk
From: Mayol Santiago (SMayol@nycboe.net)
Date: Fri Mar 26 2004 - 11:01:28 EST

  • Next message: Michael Paul Goldenberg: "Re: [Channel-talkmathhs] mnemonics"

    I've never believed in mnemonics as a sound tool for teach math. If one
    should develop naturally from students attempting to describe events, I
    certainly would acknowledge it, but on principal, tricks and gadgets
    should never replace authentic learning. memorizing these tricks can
    also interfere with the flexibility of thinking necessary for students
    to conceptualize math. SOHCAHTOA doesn't help anyone see tan as a
    height/distance ratio, a slope, a direction, or a secant line. It's
    more important for students to experience the tangent of an angle and
    how it's measure is affected by the height distance ratio. To recognize
    that a Trig ratio is the signature of a unique angle. Really, the only
    thing students should memorize are benchmarks that will help them solve
    or reason about other problems; benchmarks such as the tan of 27 or 63,
    and 45 that help them gauge to magnitude of other angles; relationships
    that they should reason about the tan of 90 and why m tan 91 is
    negative.
     
    Mnemonics never hurt me. I learned SOHCAHTOA. But that did nothing to
    help me, and more importantly, nothing to help my students understand
    these relationships any better. The mnemonic in fat was a crutch my
    kids would desperately try to squeeze answers from on exams. Since I
    changed my pedagogy to a more active learning approach, my students'
    performance and understanding has soared.
     
     

            -----Original Message-----
            From: channel-talkmathhs-bounces@learner.org
    [mailto:channel-talkmathhs-bounces@learner.org] On Behalf Of teresa75
            Sent: Wednesday, March 24, 2004 5:07 PM
            To: conniemarie@cox.net; Discussion list for TEACHING MATH,
    GRADES 9-12
            Subject: Re: [Channel-talkmathhs] mnemonics
            
            
            Yes Constance, Ssme can but for others the mnemonics help.
    Different learning styles.

                    ----- Original Message -----
                    From: Constance Hughes <mailto:conniemarie@cox.net>
                    To: 'Discussion list for TEACHING MATH, GRADES 9-12'
    <mailto:channel-talkmathhs@learner.org>
                    Sent: Tuesday, March 23, 2004 8:06 PM
                    Subject: RE: [Channel-talkmathhs] mnemonics

                    What's so hard to understand 3 major relationships? Sin,
    cos, tan? I myself can never remember all the mnemonics-what if they
    can't either? These kids can play computer games that'll knock your sock
    off-can't they recognize a few ratios?

                     

                    
      _____

                    From: channel-talkmathhs-bounces@learner.org
    [mailto:channel-talkmathhs-bounces@learner.org] On Behalf Of Jennifer
    Gwilt
                    Sent: Wednesday, March 17, 2004 5:04 AM
                    To: channel-talkmathhs@learner.org
                    Subject: Re: [Channel-talkmathhs] mnemonics

                     

                    A friend told me that they used Sohcahtoa which you
    pronounce Sock-ah-toe-ah

                            ----- Original Message -----

                            From: Don Flynn
    <mailto:flynnster@bacavalley.com>

                            To: channel-talkmathhs@learner.org

                            Sent: Monday, March 15, 2004 10:22 PM

                            Subject: Re: [Channel-talkmathhs] mnemonics

                             

                            I had learned "Oscar Had A Heap Of Apples" for
    trig functions sine, cosine and tangent as opposite side, adjacent side
    and hypotenuse, myself in high school.

                             

                            Then one student offered "Some Old Hippy Caught
    Another Hippie Tripping On Acid", which while contrary to our drug use
    policy at school is very catchy for students.

                             

                            I tried "Some Obese Heifer Cow Always Had Taken
    Others Alfalfa" but it wasn't nearly as effective.

                                    ----- Original Message -----

                                    From: teresa75
    <mailto:teresa75@ftc-i.net>

                                    To: channel-talkmathhs@learner.org

                                    Sent: Friday, March 12, 2004 4:32 AM

                                    Subject: [Channel-talkmathhs] mnemonics

                                     

                                    What are some mnemonics or memory
    devices that you use in you math classroom? One I came up with for my
    students is that you have to use the Law of Cosines in SASSy triangles
    to help them remember SAS and SSS is when the LOC is necessary.

                    
      _____

                    

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