January 11, 2008
Volume 13 No. 2

In This Issue

Timely T2T FAQs

Connecting Mathematics

Scientific American


Free Online

For teachers of students in grades 3-5:
Tools for Building Math Concepts

For teachers of students in grades 5-9:
Using Technology and Problem Solving to Build Algebraic Reasoning

For all students:

For students in grades 9-10:
the MathMentor


T2T FAQ: 100th Day of School


Chances are that some time in January or February your students will be attending school for the 100th day this school year.

While the 100th Day can be a lot of fun, it is important to remember the mathematical significance of the celebration. Counting up to 100 for the 100th day of school gives teachers many special opportunities to investigate place value.

The discussions and links to Web resources found in the FAQ provide many ideas to make your 100th Day a memorable experience for your students.

T2T FAQ: Math in the Real World: Mathematics and Elections


Classroom resources for studying and explaining the mathematics involved in the election process.

Connecting Mathematics


This University of Cambridge site contains brief explanations of over 4000 mathematical terms and ideas. In addition to entries in the English language, they appear in Danish, Finnish, Hungarian, Lithuanian, Polish, and Slovak, with Spanish forthcoming.

Mathematical entries are linked to others using five types of link:

  • Broader: A link to a broader idea, or a more general or more encompassing one
  • Narrower: A link to a narrower, more specific, term
  • References: A link to a term used in explaining this idea
  • Referenced By: Links to ideas which build on this one
  • See Also: A link to something relevant to this term
Thumbnail images (and the plugins they require) are linked to all the illustrated entries in these media galleries:
  • Image Gallery
        Various images (no plugin required)
  • Flash Gallery
        Flash animations (Flash)
  • Cinderella Gallery
        Dynamic Geometry diagrams (Sun Java)
  • Live3D Gallery
        3D viewer (Sun Java)
  • Java3D Gallery
        3D viewer (Sun Java with java3D extension)
  • Shockwave Gallery
        3D viewer (Shockwave)
  • VRML Gallery
        Virtual Reality 3D viewer (Cortona VRML)

Scientific American


Scientific American, the oldest continuously published magazine in the U.S., has reported on developments in science and technology for more than 150 years. Since March, 1996, the publication has added resources to its site covering these topics:

  • Health
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  • Physics
  • Chemistry
  • Math
  • Society & Policy
  • History of Science

View these areas:

  • Latest News
  • Hot Topics
  • Blogs & Opinion
  • Sci-Doku
  • Today's Trivia
  • Edit This
  • Ask the Experts
  • Strange but True
  • Podcasts, Slideshows & Videos


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