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Elizabeth Stapel
This site contains a comprehensive collection of free resources designed to help high school students gain understanding and confidence in algebra. Materials include online tutorials and lessons, worksheets and quizzes, a discussion forum for registered users, and tips for succeeding in algebra. Most materials are available in print-friendly versions and are written in a way to engage student interest. Topics that would be especially applicable to algebra-based physics include graphing, unit conversion and dimensional analysis, and significant digits.
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Record Link
<a href="https://www.compadre.org/portal/items/detail.cfm?ID=9364">Stapel, Elizabeth. Purplemath: Practical Algebra Lessons. February 6, 2008.</a>
AJP/PRST-PER
E. Stapel, Purplemath: Practical Algebra Lessons (1999), <https://www.purplemath.com/modules/index.htm>.
APA Format
Stapel, E. (2008, February 6). Purplemath: Practical Algebra Lessons. Retrieved May 2, 2025, from https://www.purplemath.com/modules/index.htm
Chicago Format
Stapel, Elizabeth. Purplemath: Practical Algebra Lessons. February 6, 2008. https://www.purplemath.com/modules/index.htm (accessed 2 May 2025).
MLA Format
Stapel, Elizabeth. Purplemath: Practical Algebra Lessons. 1999. 6 Feb. 2008. 2 May 2025 <https://www.purplemath.com/modules/index.htm>.
BibTeX Export Format
@misc{
Author = "Elizabeth Stapel",
Title = {Purplemath: Practical Algebra Lessons},
Volume = {2025},
Number = {2 May 2025},
Month = {February 6, 2008},
Year = {1999}
}
Refer Export Format
%A Elizabeth Stapel %T Purplemath: Practical Algebra Lessons %D February 6, 2008 %U https://www.purplemath.com/modules/index.htm %O text/html
EndNote Export Format
%0 Electronic Source %A Stapel, Elizabeth %D February 6, 2008 %T Purplemath: Practical Algebra Lessons %V 2025 %N 2 May 2025 %8 February 6, 2008 %9 text/html %U https://www.purplemath.com/modules/index.htm Disclaimer: ComPADRE offers citation styles as a guide only. We cannot offer interpretations about citations as this is an automated procedure. Please refer to the style manuals in the Citation Source Information area for clarifications.
Citation Source Information
The AIP Style presented is based on information from the AIP Style Manual. The APA Style presented is based on information from APA Style.org: Electronic References. The Chicago Style presented is based on information from Examples of Chicago-Style Documentation. The MLA Style presented is based on information from the MLA FAQ. This resource is stored in a shared folder. You must login to access shared folders. |
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