August 4, 2006
Volume 11 No. 31

In This Issue

Number Systems of the World



Number Systems of the World

Takasugi Shinji's site lists dozens of languages; how to count from zero to one hundred in each; and the mathematical meaning of the expressions for each numeral.

Information displayed on his chart includes:

  • Complexity Rank
  • Language (linked to individual language page)
  • Language Family, Subfamily
  • Native Speakers Population
  • Spoken Area


Originally called "math movies" or "whiteboard movies," mathcasts are screencasts (screen movies of writing with voice) that focus on mathematics. gives students a library of math tutorials and problem solutions. Teachers use this wiki to share methods for teaching, and to learn from others.

View "How to use this site"

  • Browse Mathcasts by Topic
  • Watch & comment on mathcasts by others
  • Request a mathcast
  • Contribute your own mathcasts
  • Create a digital portfolio of your work

Frederick and Donna Roberts offer students and teachers their lessons and activities:

  • Teacher Resources
        Algebra, Geometry, Algebra 2, Statistics
  • Finding Your Way Around the TI-83+/TI-84+ Graphing Calculator
  • Using the TI-89 Titanium and the Voyage 200
  • Geometer's Sketchpad: Already Made Files and Materials for GSP 4.0
  • Beginning Programming in Java
  • Introduction to Programming in C++
  • Using PowerPoint for Interactive Math Games and Activities
  • Workshop Information


This newsletter is provided as a service of The Math Forum, an online educational community for mathematics hosted by Drexel University, Philadelphia, PA.

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The Math Forum is also home to Ask Dr. Math, Problems of the Week, MathTools, Teacher2Teacher, the Internet Math Library, math discussion groups, and over 1,000,000 pages of mathematics information and discussions.

The Math Forum
is sponsored in part by
Texas Instruments

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