Provides access to practice tests and online mini-courses to help students, recent immigrants, and job seekers. Available practice tests include the SAT, ACT, GRE, Civil Service, Citizenship Exam, and TOEFL. Now contains e-books!
Formulas and illustrations on how to determine areas, volumes, and surface areas. Visit the area and perimeter page for more examples.
Search the archives for thorough answers to elementary through college level mathematics questions.
A huge, organized list of over 11,000 links to Web pages that perform calculations and conversions for you. Has 4 sections: an Alphabetical subject list, Mathematics, Science, and Engineering. Subjects areas include such diverse topics as cooking & beverage, cinematography, marriage, and welding.
This easy-to-use site has interactive calculators for common and unusual measurement systems, including metric as well as Ancient Greek & Roman. Measurements include weight and mass, distance and length, capacity and volume, area, speed, temperature, time, pressure, energy and work, power, circular measure, and computer storage.
An interactive website where the user selects one of five types of graphs to generate. The user then plugs in data, and sees a graph representing the data.
Contains biographies of mathematicians as well as the history of mathematics in various cultures.
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