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        MATH TOOLS NEWSLETTER - DECEMBER 4, 2004 - No. 21

  Your eyes do not deceive you: the photographs on the Math
  Tools home page have changed! In fact, we have recently
  started to rotate them on a weekly basis, and have added
  a third graphic that features a tool.

  Do you have a favorite tool that you'd like us to feature?
  Let us know! Do you have photographs of students or teachers
  using a math tool? Use our "Contribute a photo" link:

  http://mathforum.org/mathtools/contribute.html

  ***FEATURED TOOL
  Tool: Willy the Watchdog
  Harcourt School Publishers
  http://mathforum.org/mathtools/tool/16243/
  Two players take turns telling time in this game that
  combines chance and skill. The spaces on the game board
  show different clock times. Roll the die to move to a new
  position on the board, then turn the gear to move the hands
  on the clock face to the time shown. Answer incorrectly,
  and you lose your next turn.

  ***FEATURED TOOL
  Tool: Simultaneous Equation Solver
  Texas Instruments
  http://mathforum.org/mathtools/tool/16323/
  Calculate solutions (unique, representation of the infinite
  solutions, or no solution) for linear systems up to 30x30.

  ***FEATURED TOOL
  Tool: Let's Do Math Checkerboard
  Cynthia Lanius
  http://mathforum.org/mathtools/tool/15504/
  As a problem solving activity, students determine how many
  squares are on a checkerboard. Students drag highlighted
  squares of various sizes around the board to count the number
  of squares. They enter the values in a table and submit to
  get the answer.

  ***FEATURED DISCUSSION
  Left Right Translation of Functions
  http://mathforum.org/mathtools/discuss.html?&do=m&thread=a2_____g-1
  Susan asks, "Most students have no problems understanding a
  real world application that shows a vertical shift in a
  function. What is so much harder to explain is the horizontal
  shift. Does anyone have a good way to explain this?"

  ***FEATURED DISCUSSION
  Research concerning most beneficial amount of time spent on math
  http://mathforum.org/mathtools/discuss.html?do=m&thread=_____ra-40
  Tara posts the question, "We are wondering if there is
  significant research about the most beneficial amount of time
  that should be spent per day on math."

  ***FEATURED DISCUSSION
  Pick-a-block tool (middle level)
  http://mathforum.org/mathtools/discuss.html?&do=m&thread=ps__hl_tool__g-1
  Tackweed writes, "I am curious as to whether I should include
  the simulated experimental probability and the theoretical
  probability as part of the summary, or should I leave it for
  student calculation."


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       Discussions  http://mathforum.org/mathtools/discuss.html
     Research Area  http://mathforum.org/mathtools/research/
   Developers Area  http://mathforum.org/mathtools/developers/
Newsletter Archive  http://mathforum.org/mathtools/newsletter/

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             The Math Forum @ Drexel -- 4 December 2004