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ERIC Number: EJ898325
Record Type: Journal
Publication Date: 2010-Aug
Pages: 5
Abstractor: ERIC
Reference Count: 1
ISSN: ISSN-0025-5769
Cosby's Rule: Connecting Summation Operations, Definite Integrals, and the Fundamental Theorem of Calculus
Sloan, Margaret H.
Mathematics Teacher, v104 n1 p45-49 Aug 2010
Students at all levels often generate ideas that are not obviously right or wrong, and, when they do, it is productive to take time to explore the ideas as a group. Some of these ideas are really strange. Occasionally, they are so strange that even the teacher might not know what to think of them. This is the story of what Cosby's rule is, how it came to be, and the effect that it had on an AP Calculus class in a small school in rural Georgia.
National Council of Teachers of Mathematics. 1906 Association Drive, Reston, VA 20191-1502. Tel: 800-235-7566; Tel: 703-620-3702; Fax: 703-476-2970; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: High Schools; Secondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Georgia