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Though I do return the correct header for a PDF, sometimes Explorer gets confused when downloading... So if you're running Windows, you may need to right-click a link and choose "Save link to disk". Tip number two! Some people may need to turn off the option in Adobe's Acrobat reader "shrink to fit" which may resize the grid slightly to fit your printer's printable area. Tip number three!

Free Online Graph Paper / Grid Paper PDFs

http://incompetech.com/graphpaper/
http://illuminations.nctm.org/ActivityDetail.aspx?ID=17 Choose a fractal from the top menu or create your own. Observe how the fractal image and table values change as you step through the various stages. How does the image change with each step? If you step one stage forward, what about the fractal image changes and what stays the same?

Illuminations: Fractal Tool

Math Simulations

The Alphabet superhighway (K-12) This World Wide Web (WWW) site, sponsored by the U.S. Department of Education's READ*WRITE*NOW! Initiative, helps students in grades 1 to 12 to create, locate, and communicate information through active learning, guided discovery, mentoring, competitions. The Stock Market Game SMG2000, the stock market game (4-12) This World Wide Web (WWW) site is designed to help students in grades 4 to 12 understand the stock market, the costs and benefits involved in decision making, and the sources and uses of capital and other related economic concepts http://www.techtrekers.com/sim.htm
http://illuminations.nctm.org/

Illuminations: Welcome to Illuminations

Laurie Penney, a teacher at Willard School in Concord, Mass., was a participant at the 2011 Illuminations Summer Institute. As a follow-up to the lesson How Many Each? , which she created during the institute, she recently helped to develop Illuminations’s newest online activity, Quotient Café .
Online Calculator and Math Help eCalc is a free and easy to use scientific calculator that supports many advanced features including unit conversion, equation solving, and even complex-number math. eCalc is offered as both a free online calculator and as a downloadable calculator. Input Mode (Algebraic vs. http://www.ecalc.com/

Online Scientific Calculator

Search Algebralab

http://www.algebralab.org/search.aspx?external=%7B0D2F8B13-DCCB-4514-84BE-33D336E03033%7D Our search engine is conjunctive; that is, it reports materials that belong to all categories you specify. It is recommended that you begin any search in the most general manner and then, as necessary, narrow it down by choosing additional search criteria. Results will be displayed alphabetically by document type: activities, lessons, comprehension passages,