June 13, 2008
Volume 13 No. 24

In This Issue

Invitation for Participation in Research

Google Scholar

The Glossary of Mathematical Mistakes


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

For teachers of students in grades 5-9:
Technology Tools for Thinking and Reasoning about Probability

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

For all students:


Invitation for Participation in Research


The LessonLab Research Institute seeks math teachers of grades five through seven to participate in a federally funded research study.

In exchange for permission to videotape one of your lessons and a few hours of your time online, you'll get a $250 Amazon.com gift certificate and a copy of your lesson.

What you'll do:

  • complete a background survey
  • respond to a set of video clips of math lessons on fractions
  • complete a survey on mathematics teaching
  • allow LessonLab to videotape one fraction lesson
  • administer a short pre- and post-test on fractions to your students

In exchange for allowing LessonLab to videotape one fraction lesson on either ratios/proportions or variables/expressions/equations, math teachers of grades 5-7 can also earn a $200 Amazon.com gift certificate.

What you'll do:

  • allow LessonLab to videotape one fraction lesson on either ratios/proportions or variables/expression/equations

For more detailed information, contact Frank Sotelo. His email address and phone number are listed on the website.

Google Scholar


Google Scholar is a subset of the larger Google search index, consisting of full-text journal articles, technical reports, preprints, theses, books, and other documents.

Use the Advanced Scholar Search to confine search results to engineering, computer science, and mathematics.

The Glossary of Mathematical Mistakes


Paul Cox describes his website as "dedicated to the listing of mathematical mistakes made over and over by advertisers, the media, reporters, politicians, activists, and in general many non-math people."


  • The Archive
  • Reader's Response
  • Puzzles and Problems
  • Sources and Links


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