Smiles : which is worth more, a smile or a frown?

URL: http://www.figurethis.org/challenges/c30/challenge.htm

1007936

This activity offers a logic problem in which students are shown an array of smiling, frowning, and neutral faces. Each row and column adds up to a different dollar amount, and students are challenged to determine how much a smile is worth. The activity, from the Figure This! collection of 80 online challenges, notes that working with equations is an important skill in such careers as nursing, chemistry, and engineering. Students are encouraged to begin this challenge by finding rows or columns that have only frowning or smiling faces and finding a way to combine two of them. Two alternative solutions are provided. Additional pages feature hints, related math questions, and resources for learning more about game theory and logic puzzles. Copyright 2005 Eisenhower National Clearinghouse

Summary

Subject keyword(s)	Algebra, Education, Equations, Linear, Mathematics, Problem solving, Process skills, Reasoning
Grade level	Middle School, Informal Education
Intended audience	Learner
Resource type	Audio/Visual, Instructional Material
Resource format	image, image/gif, text, text/html
Rights	Content copyright 1999-2002 National Council of Teachers of Mathematics.

Found in collection(s)

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Title	Middle School Portal: Math and Science Pathways (MSP2)
Link	http://msteacher2.org/
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.
	Full description and distribution of resources

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.