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ERIC Number: EJ1101418
Record Type: Journal
Publication Date: 2016-May
Pages: 4
Abstractor: ERIC
ISSN: ISSN-0025-5769
School's Out-Gone Fishing!
Lancaster, Ron
Mathematics Teacher, v109 n9 p646-649 May 2016
Can you solve the following Problem? There are 200 fish in an aquarium, and 99 percent of them are guppies. How many guppies must be removed to reduce the tank's guppy population to 98 percent? The key to this problem is to work backward by using the data given in figure 2 to determine the surface area of the top of the aquarium; then determine the length of the side and then the height of the aquarium from its known volume. Once students have computed these dimensions, they can check them on the website's calculator. ["Media Clips" appears in every issue of "Mathematics Teacher," offering readers contemporary, authentic applications of quantitative reasoning based on print or electronic media.]
National Council of Teachers of Mathematics. 1906 Association Drive, Reston, VA 20191. Tel: 800-235-7566; Tel: 703-620-9840; Fax: 703-476-2570; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A