http://feromax.com/cgi-bin/ProveIt.pl

Michael Ferraro of Balboa High School in San Francisco, CA, created this tool for students to practice their two-column proof skills. Choose a topic to begin, and choose statements and reasons from the list given. As you go, there are options to remove or move statements and reasons in previous lines. Complete the proof and check it with the "QED?" button.

http://www.scribd.com/Pearson%20Math%20Stats

Pearson Learning brings you free activities for students to use with Wolfram|Alpha. The questions teach input and command syntax or reinforce answer interpretation or the concepts of intermediate algebra.

http://resources.educ.queensu.ca/early_years_math/

These materials are a translation of the Spanish materials created by the Instituto de Informática Educativa (IIE), Universidad de la Frontera, Temuco, Chile. The first and second units have been translated into English, and the third unit is available in Spanish through this Queen's University site.

The units offer modeling, practice, assessment, and student and teacher guides for each topic:

• Solving Addition Problems
• Counting and Numbers
• Geometry in Our World

The English translation was made by Queen's University, Canada, through a grant from Microsoft. IIE's original versions, in Spanish, can now be found via

http://mathforum.org/redirects/iie.html