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ERIC Number: EJ943370
Record Type: Journal
Publication Date: 2011-Oct
Pages: 5
Abstractor: ERIC
ISSN: ISSN-0025-5769
An Ap"peel"ing Activity
Urich, Joshua A.; Sasse, Elizabeth A.
Mathematics Teacher, v105 n3 p189-193 Oct 2011
This article describes a hands-on mathematics activity wherein students peel oranges to explore the surface area and volume of a sphere. This activity encourages students to make conjectures and hold mathematical discussions with both their peers and their teacher. Moreover, students develop formulas for the surface area and volume of a sphere using both informal and formal methods of proof. Finally, it may be the one activity that helps alleviate student anxiety about mathematics. (Contains 4 figures.)
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
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A