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ERIC Number: EJ886394
Record Type: Journal
Publication Date: 2010-May
Pages: 3
Abstractor: ERIC
ISSN: ISSN-1072-0839
Comparing the Volumes of Rectangular Prisms
Assuah, Charles K.; Wiest, Lynda R.
Mathematics Teaching in the Middle School, v15 n9 p502-504 May 2010
Can middle-grades students determine which of two rectangular prisms has a larger volume? Can they do so without using a formula? Geometry, and particularly the concept of volume, is important in many subjects, such as physics and chemistry. Students greatly enhance their mathematics knowledge when they make generalizations and construct arguments to justify their methods through problem solving. To realize this goal, teachers should encourage and accept students' self-initiative, allow students' responses to help shape lessons, and inquire about students' understanding of concepts before sharing their own. In this article, the authors describe a task that requires students to use their own nonformulaic methods and reasoning to investigate volume. (Contains 1 figure.)
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: Middle Schools
Audience: Teachers
Language: English
Sponsor: N/A
Authoring Institution: N/A