The Shape of an Ellipse
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| Title: | The Shape of an Ellipse |
|---|---|
| Language: | English |
| Authors: | Foley, Gregory D. |
| Source: | Mathematics Teacher. Nov 2011 105(4):274-279. |
| Availability: | 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: orders@nctm.org; Web site: http://www.nctm.org/publications/ |
| Peer Reviewed: | Y |
| Physical Description: | |
| Page Count: | 6 |
| Publication Date: | 2011 |
| Document Type: | Journal Articles Reports - Descriptive |
| Education Level: | High Schools Higher Education |
| Descriptors: | Geometric Concepts, Mathematics Instruction, Geometry, National Standards, Correlation, Astronomy, Comprehension, Equations (Mathematics), Vocabulary, Mathematics Achievement, Class Activities, College Students, High School Students |
| ISSN: | 0025-5769 |
| Abstract: | Ellipses vary in shape from circular to nearly parabolic. An ellipse's eccentricity indicates the location of its foci, but its aspect ratio is a direct measure of its shape. This article takes a careful look at the shape of an ellipse and offers practical suggestions and specific activities to deepen students' understanding of the geometry of an ellipse. Using the Common Core (2010) practices and NCTM (2000, 2009) Standards, the activities link an ellipse's shape to algebra, data, and measurement and make connections between mathematics and astronomy. (Contains 8 figures and 1 table.) |
| Abstractor: | ERIC |
| Number of References: | 10 |
| Entry Date: | 2012 |
| Access URL: | https://www.nctm.org/publications/article.aspx?id=31283 |
| Accession Number: | EJ954787 |
| Database: | ERIC |
| Abstract: | Ellipses vary in shape from circular to nearly parabolic. An ellipse's eccentricity indicates the location of its foci, but its aspect ratio is a direct measure of its shape. This article takes a careful look at the shape of an ellipse and offers practical suggestions and specific activities to deepen students' understanding of the geometry of an ellipse. Using the Common Core (2010) practices and NCTM (2000, 2009) Standards, the activities link an ellipse's shape to algebra, data, and measurement and make connections between mathematics and astronomy. (Contains 8 figures and 1 table.) |
|---|---|
| ISSN: | 0025-5769 |
