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  MATH TOOLS NEWSLETTER - JANUARY 30, 2009 - No. 72

 ***ONLINE PROFESSIONAL DEVELOPMENT WORKSHOPS (free)
 For teachers of students in grades 5-9, we offer 
 online workshops:

 Technology and Algebraic Reasoning
 http://mathforum.org/nsdl_mathtech/online/

 Tools for Thinking about Probability
 http://mathforum.org/nsdl_mathtech/online/prob.html

 The application deadline for our next sessions is
 Monday, February 23. The $100 workshop fee is 
 currently covered by a grant from the National 
 Science Foundation.

 ***ONLINE PROFESSIONAL DEVELOPMENT COURSE
 Teaching Mathematics with the Problems of the Week is
 designed for current subscribers of the Problem of the
 Week who want to implement problem solving more effectively.

 All individuals who successfully complete the course will
 receive a certificate indicating that they have completed
 15 hours of professional development. This is equivalent
 to 1.5 Continuing Education Units (CEUs). Current prices
 for this course start at $149.

 Led by Claire Mead, Teaching Mathematics with the Problems of 
 the Week is scheduled to span six weeks, February 19 through
 April 1. Participants will have some flexibility within each
 week but are expected to complete the activities during the
 assigned week. Registration closes at 5 pm on Friday,
 February 13, 2009.

 View more description and the syllabus:

 http://mathforum.org/pd/funpow/syllabus.html

 ***FEATURED DISCUSSION
 Tutorial software for high school algebra
 http://mathforum.org/mathtools/discuss.html?&do=r&msg=74103
 bobk544 adds this comment to an existing discussion: "I 
 am continually in and out of the need for complex math and 
 continually having to reinvent my learning approach, but 
 with a site like this, I can see unlimited potential 
 for everyone!"

 ***FEATURED DISCUSSION
 Factoring Quadratics
 http://mathforum.org/mathtools/discuss.html?&do=m&thread=a_____g-30
 LFS announces, "I invite you to look at this scheme for factoring 
 a quadratic with a=1."

 ***FEATURED TOOL
 Tool: How fast can you run?
 http://mathforum.org/mathtools/tool/73157/
 Michael Backus
 Students determine how fast they can run in ft/s, 
 mi/hr, m/s, and km/hr.

 ***FEATURED TOOL
 Tool: How old are you?
 http://mathforum.org/mathtools/tool/73158/
 Michael Backus
 Students calculate how old they are in days, hours, 
 minutes, and seconds. This assignment provides 
 for differentiation.

 ***FEATURED TOOL
 Tool: Mixtures
 http://mathforum.org/mathtools/tool/70747/
 Shodor: Project Interactivate
 Mixtures allows exploration of percents through two 
 piles of colored and uncolored chips. The user must 
 decide how many chips to color to create the desired 
 percentage of colored chips compared to the total pile. 
 Mixtures is one of the Interactivate assessment explorers.

 ***FEATURED TOOL
 Tool: Chron me!
 http://mathforum.org/mathtools/tool/70981/
 chronme
 Chron me! is an online stopwatch. You may use it to 
 just time a specific activity or monitor your daily 
 tasks. Versions available include full, mini, and 
 blog-friendly widget.

 ***FEATURED TOOL
 Tool: Regression
  http://mathforum.org/mathtools/tool/70767/
 Shodor: Project Interactivate
 Plot a bivariate data set, determine the line of 
 best fit for their data, and then check the accuracy 
 of your line of best fit.

 ***FEATURED TOOL
 Tool: Multi-Function Data Flyer
 http://mathforum.org/mathtools/tool/70763/
 Shodor: Project Interactivate
 Enter a set of data points and a function or multiple 
 functions, then manipulate those functions to fit 
 those points. Manipulate the function on a coordinate 
 plane using slider bars. Learn how each constant and 
 coefficient affects the resulting graph.


          CHECK OUT THE MATH TOOLS SITE:

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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 -- 30 January 2009