Math Forum Internet News

Volume 7, Number 38

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23 September 2002                                       Vol. 7, No. 38

                   THE MATH FORUM INTERNET NEWS

             Learning to Teach with Technology Studio
  Probability Explorer 2.0 - H. Stohl | Pulchritudinous Primes

                    
           LEARNING TO TEACH WITH TECHNOLOGY STUDIO (LTTS)
            ONLINE PROFESSIONAL DEVELOPMENT OPPORTUNITY

                         http://ltts.org/

  LTTS is offering an online professional development module
  entitled "Scientific Graphs and Charts: How can my students
  use technology to organize and present their inquiry data?"
  In this module, teachers design and plan a science inquiry
  unit that will teach their students how to organize and
  present their own inquiry data using computer software
  programs.

  http://www.ltts.org/system/catalog/primary/cat_module20.html

  The course will start on October 1st and it will require
  about 25 hours of work. LTTS is looking for people who:

    - teach upper elementary or middle school
    - feel that a science education professional development
        course would be helpful to them
    - have regular computer and Internet access
    - know how to use email and how to attach documents to
        email messages
    - have not completed an LTTS course in the past twelve
        months

  If you are interested:
    1.  Send an email message to ltts@indiana.edu, expressing
        your interest in participating in the professional
        development opportunity and telling your name, email
        address, and grade level you teach.
    2.  Go to http://ltts.org/ and register as a member of LTTS
        so that you can be enrolled in the system in time for
        the October 1st start. If you are already a registered
        member of LTTS, you do NOT have to re-register, though
        you may want to verify that your registration
        information is up-to-date.

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          PROBABILITY EXPLORER 2.0 - Hollylynne Stohl

                 http://www.probexplorer.com/

  Probability Explorer is an open-ended learning environment
  for representing data in multiple ways. This Windows download
  engages students in designing, simulating, and analyzing
  results of probability experiments.

  Data are represented in Probability Explorer with randomly
  generated icons that can be sorted, stacked (in a pictograph)
  or lined up in the sequence in which they occurred. A Pie
  Graph (relative frequency), Bar Graph (frequency), and Data
  Table (counts, fractions, decimals, and percents) are also
  available to display results in both static form as well as
  changing dynamically during a simulation.

  Demo version available for download
    http://www.probexplorer.com/demo.html
    All features are available in the demo, except the ability
    to save and print. In addition, in any given experiment the
    number of trials allowed is limited to 500

  Full version is available for purchase
    http://www.probexplorer.com/order.html
    Single User $18; see site for multi-user licenses    
             
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       PULCHRITUDINOUS PRIMES - Adrian J.F. Leatherland
         Visualizing the Distribution of Prime Numbers

         http://yoyo.cc.monash.edu.au/~bunyip/primes/

  Author Adrian Leatherland visualizes the distribution of
  primes:
    - Visualizing Primes in 2D
    - Visualizing Primes in 3D
    - Prime Island!
    - The Ulam Spiral Phenomenon
    - Triangle Numbers on the Ulam Spiral

  With introductory remarks on "Why primes?" and "Why
  visualize primes?"
    
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