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        MATH TOOLS NEWSLETTER - FEBRUARY 8, 2008 - No. 60

  Using Technology and Problem Solving to Build
    Algebraic Reasoning
  The Math Forum has been hosting a series of online workshops
  for teachers who work with students in 5th through 9th grade.
  Teachers are exploring how technology can help students build
  algebraic reasoning as they model and solve contextualized
  problems using a variety of representations, including graphs,
  tables, equations, and words.

  Each participant's $100 workshop fee is being covered by a
  National Science Foundation (NSF) grant, affording participants
  the convenience of anytime, anywhere online learning.

  The next workshop will be offered March 3 - April 12.
  Certificates of completion will be available for participants
  finishing the six weeks of interaction. For an overview with
  additional detalis, visit:

  Deadline for applications is Monday, February 25, 2008.


  Technology Problems of the Week (tPoWs)
  Students are invited to use the link "Submit your answer" to
  share their solutions, and then "self-mentor" using specially
  designed hints, checks, and suggestions for extensions.


  As you browse the catalog, please take a moment to rate a
  resource, comment on it, review it -- or start a new

  Tool: The Futures Channel
  Jenna Bowles, Editor
  The Futures Channel produces educational micro-documentary
  videos that show students how professionals are using math,
  science, technology and engineering in the real world.
  Teachers often describe the movies as an answer to that
  famous question, "Why do I need to learn this?"

  Tool: LSRL, Residual Plots, Data Transformation in Sketchpad
  Nate Burchell
  Drag seven independent points on a scatterplot, or send
  them to predetermined arrangements, to enhance understanding
  of correlation and the implication of changes.

  Tool: Taylor and Maclaurin Polynomials on Sketchpad
  Nate Burchell
  This Sketch allows the user to see the first ten Taylor
  (or Maclaurin) polynomials for a function.

  Physical models of surfaces
  Peter Ash explains, "I would like to obtain an actual physical
  model of a surface exhibiting negative curvature."

  Use of Video
  MrT68 writes, "Here is a website I created using some of mine.
  I have also loaded them at teachertube and put together a
  website for our school's benchmark exams."

  Curve of Best Fit for Car's Skidding Distance
  Jesdisciple asks, "Chapter 8 in the Texas Drivers Handbook
  lists the distance a car will skid after the breaks are
  applied as (MPH, feet). Does anyone have an idea how to
  solve this?"

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                The Math Forum @ Drexel -- 8 February 2008