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Terms of Use
for is the copyrighted property
of Frederick and Donna Roberts,
Fulton, New York USA
Copyright ©
All Rights Reserved.

Subscription License Agreement
for the Paid
Subscription Areas:
Please read carefully before purchasing a subscription!
rarrowThe information stated below pertains to the open-public-access areas (and Workshop areas) of and its offspring:,, GeometryBits,com and, and will be referred to simply as "".
Information pertaining to Subscription Areas is stated in the Subscription License Agreement.larrow


We have found that there is a great deal of confusion among Internet users (and educators) as to what legal use can be made of copyrighted Internet content. Hopefully, this Terms of Use page will help to clarify these issues as they relate to your use of the web site, and its offspring. Please understand that the content, materials, and graphics at are copyrighted, and as such are protected by US and International copyright laws (such as the Digital Millennium Copyright Act, the Berne Convention, and other intellectual property laws and statutes). content is NOT in the public domain. The fact that contains content which is free of charge does not imply that you are free to use this content in any manner you wish.

When accessing the contents of, you are agreeing to the following Terms of Use:

You may access materials for your own, non-commercial, private use (or for private use within your own classroom with your face-to-face students). You may print the unaltered .pdf files provided by provided that you agree to not alter the materials, and/or delete or obliterate any copyright or proprietary notices from these materials. Using snippets of content for any purpose is prohibited. You may not use materials from as templates or for the purpose of creating derivative works.

You may link to content at from a non-commercial site (and are encouraged to do so), as long as the link does not state or imply any sponsoring of your site by or Frederick and/or Donna Roberts. Linking must not present content framed within a personal web site, a school web site, or any other web site. When linking, please use a plain hypertext link. Please no deep linking or inline linking.

You may quote a small section of as in keeping with the "Fair Use" statute.
READ CAREFULLY: "Fair Use", as it applies to copyrighted materials, is for the purpose of commentary or critical review for a limited period of time with limited distribution.  Such "Fair Use" does not extend to the re-posting of the materials to the Internet/Web.  "Fair Use" must also leave copyright notices and/or authorship intact.
As applied to educators, "Fair Use" is for use within the teacher's immediate classroom setting only (for a short period of time). Educators are not to re-post such materials to the Internet "No exclusively educational purpose is guaranteed by putting material on the Web, and such conduct violates the copyright holder's right of public distribution."

You may not copy/reproduce the content from (in part, whole, or modified form) for any form of public distribution.  Examples of such public distributions include (but are not limited to):  handouts for conference presentations, project booklets, departmental handouts, workshop handouts, grant-based project materials, booklets, pamphlets, posting to school web sites, posting to personal web sites, etc. Use of these materials on any other web site for any purpose is prohibited. Re-posting to the Internet is not considered "fair use" for educators as it violates the copyright holder's right of public distribution. Linking to content at is acceptable (as noted above), but re-posting of the content from is copyright infringement.
( does not consider use for students within a teacher's face-to-face classroom to be public distribution.)
You may not use content as private tutoring lessons/materials for which you are paid. You may not link to (or its offspring) content to be used for commercial tutoring.

You may not use the content at when teaching an on-line course if such teaching requires the re-posting of the materials to the Internet, intra-net, or any public/internal distribution format. All (non-subscription) content can be linked directly from the web site, making any form of re-posting of content unnecessary. is an extremely stable site (first postings 1998).

You may not copy, import, snag, etc. the web sites and/or its offspring to be used in part or whole, by others. Content from may not be copied, framed, mirrored, downloaded, uploaded, burned, snagged, or installed electronically on any server.  You may not re-post any of  the pages or content from on the Internet in any form (be it part, whole or modified).  You most certainly may not present the content from as your own Internet/computer based content by using the content with the copyright/authorship removed.
You may not copy, modify, and/or distribute content for commercial use by profit making projects and/or organizations.

You may not use the graphics (such as, but not limited to, diagrams, graphs, clipart, animations, phototgraphs, photo objects, banners, drawings, and/or any combination of the like), from (or its offspring sites). The graphics at were purchased or licensed for use on  We pay for the legal rights to post these graphics, and these graphics are not free for the taking. The graphics are not to be copied or modified for personal, educational, or commercial use.  [Note: Copying graphics from the Internet may place you in danger of copyright infringement from BOTH the posting site and the graphic's commercial licensing company.] In addition, you may not directly link (hot link) to graphics at

The content presented at carries no guarantee or warranty.   No one at involved in creating, producing or delivering the site accepts liability for (but not limited to) student progress, educational testing scores, educational program completion, teacher employment, or teacher professional progress.  In addition, no one at accepts liability for the improper or incorrect use of these materials. Content is provided on an "as is" basis and use of this content is at your discretion. reserves the right to modify these Terms of Use. Users are responsible for regularly reviewing these Terms of Use. In addition, may discontinue, change or restrict access to content at any time. 

Links to other web sites are offered as a courtesy only. is not affiliated with these sites and does not accept liability for your use of these sites. (Exception: The web sites,, and are offspring of

Violations of the Terms of Use will result in action being taken against the offender and/or any offending web site(s). Be warned that students are quick to report copyright infringements made by their teachers. If it becomes necessary to contact a teacher's school district regarding the posting of copyrighted materials (or other infringement issues), it may prove to be professionally embarrassing to both the teacher and the district.

If you have any questions regarding these Terms of Use, please contact: