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This activity challenges students to estimate the total number of fish in a pond, given the numbers of fish initially tagged and released, the tagged fish recaptured, and the total number of recaptured fish. The activity, part of the Figure This! collection of 80 math challenges emphasizing math in the real world, introduces the capture-recapture method as a statistical tool used by fish and wildlife experts to estimate the size of populations. The solution hint suggests that students determine what fraction of the recaptured fish was already marked. Related questions ask students to set up proportions to estimate additional populations and to think about confounding variables that could affect the results. Answers to all questions and links to additional resources are included. Copyright 2005 Eisenhower National Clearinghouse
Summary
| Subject keyword(s) | Arithmetic, Mathematics, Number and operations, Operations, Ratio and proportion, Statistics |
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| Grade level | Middle School, Informal Education |
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| Intended audience | Learner |
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| Resource type | Audio/Visual, Instructional Material |
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| Resource format | image, image/gif, text, text/html |
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| Rights | Content copyright 1999-2002 National Council of Teachers of Mathematics. |
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Using this resource
Found in collection(s)
Click on the logo to get more information about the collection.
| Title | Middle School Portal: Math and Science Pathways (MSP2) |
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| Link | http://msteacher2.org/ |
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| Description | The Middle School Portal 2: Math and Science Pathways (MSP2) supports middle grades educators with high-quality, standards-based resources and promotes collaboration and knowledge-sharing among its users. Educators use MSP2 to increase content knowledge in science, mathematics, and appropriate pedagogy for youth ages 10 to 15. MSP2 employs social networking and digital tools to foster dynamic experiences that promote creation, modification, and sharing of resources, facilitate professional development, and support the integration of technology into practice. MSP2 is a project of the Ohio State University College of Education and Human Ecology, National Middle School Association, and Education Development Center, Inc., and is funded by the National Science Foundation. The partners integrate resources, tools, and services across projects, and support multiple methods of resource discovery to meet the needs of this audience. |
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| Full description and distribution of resources |
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Content contained within the resource
Home � Getting Started � Answer � TryThese � ThinkAbout This � Did You Know? � Resources Try Another Challenge � Challenge Index � Math Index · Printing the Challenges � En Español Family Corner � Teacher Corner � About Figure This! · Purchase the CD ©2004 National Council of Teachers of Mathematics Web site and CD-ROM design/production © 1999-2004 KnowNetConstruction, Inc.
