From Free Software Directory
Revision as of 16:43, 29 March 2018 by Bendikker (talk | contribs)

(diff) ← Older revision | Approved revision (diff) | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search


Lets students check answers to math and science questions

Spotter lets students check their answers to math and science questions. It tells whether the answer is correct, and can also help diagnose an incorrect answer; the instructor can also add hints. Spotter isn't limited to numerical problems. For instance, if the problem is to solve the equation x-b-7a=0 for x, the student can type in either b+7a or 7a+b as the answer, and the program will know it's correct. Spotter is set up as an interactive web page that you can access through any computer that has an internet connection and a web browser.


User manual included and available in PDF format from

Related Projects



Verified by

Verified on




Verified by

Janet Casey

Verified on

10 July 2002

Leaders and contributors

Benjamin Crowell Maintainer

Resources and communication

AudienceResource typeURI
Bug Tracking,Developer,
Python (Ref)
Ruby (Ref)

Software prerequisites

Required to usePerl 5.6 or later

This entry (in part or in whole) was last reviewed on 29 March 2018.


"Python (Ref)" is not in the list (General, Help, Bug Tracking, Support, Developer) of allowed values for the "Resource audience" property.

"Ruby (Ref)" is not in the list (General, Help, Bug Tracking, Support, Developer) of allowed values for the "Resource audience" property.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

The copyright and license notices on this page only apply to the text on this page. Any software or copyright-licenses or other similar notices described in this text has its own copyright notice and license, which can usually be found in the distribution or license text itself.