Terms of Use:

All information provided on the site is intended for informational purposes only. Authorization is hereby provided to you to download documents provided that such copies are used solely for your personal use or within your educational organization. This site contains hyperlinks to other sites controlled by parties other than HCPS. HCPS is not responsible for the content of these sites.

    Recommended Software:
  • Up-to-date Internet Browser
  • PowerPoint Veiwer
  • PDF Reader
  • C.a.R. (Compass and Ruler): Java-based, GNU licensed software by Rene Grothmann, professor of mathematics at the University of Eichstätt (Germany), this application is entirely free, multilingual and runs under MAC OSX, Windows and Linux. To download, visit the C.a.R. Site.
  • GeoGebra: Java-based, GNU licensed software, developed for education in secondary schools by Markus Hohenwarter at the University of Salzburg. This application is entirely free, and runs under MAC OSX, Windows and Linux. To download, visit the GeoGebra Site.
  • Required Browser Plug-ins:
  • Flash Player
  • QuickTime Movie Player

Technical support

If the above states that Java and/or JavaScript are not enabled then you must address this problem since most pages on this site rely on Java and/or JavaScript to display the interactive parts. Any users still having problems are advised to install the newest Java version at SUN.


These web pages are under development by Henrico County Public School (HCPS) mathematics teachers. The pages are reviewed and revised by teachers. Our goals are to make the pages easy to use, instructionally sound and to help students learn and remember their mathematics.

We create interactive, engaging, web pages that students will want to investigate and explore. Theses pages are different from a printed textbook by using java-based scripts, web sites, software program files and browser plug-ins.

This is a work in progress so you may see sections with some missing information. We thank the teachers in Henrico County Public Schools for contributing their ideas and materials for this site. Special thanks is given to the following people who put this site together.

  • Steven Lapinski, Mathematics Educational Specialist, HCPS
  • Pete Anderson, Teacher, Hermitage High School
  • Jim Guthrie, Teacher, Hermitage High School
  • Doug Ameigh, Teacher, Deep Run High School
  • Anthony Dove, Teacher, Deep Run High School
  • Kristine Chiodo, Teacher, Freeman High School