Math Forum Internet News

Volume 4, Number 39

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27 September 1999                                  Vol. 4, No. 39


Tools for Understanding | Significant Figures-Mulliss |
Learning Strategies Database TOOLS FOR UNDERSTANDING John Woodward; University of Puget Sound A resource guide for extending mathematical understanding in secondary schools, for educators who teach mathematics and are interested in integrating common technologies into their daily instruction. Most of the lessons on this site were piloted, revised, and re-piloted in middle-school classrooms over a three-year period. Onsite strands include MATH CONCEPTS, with lessons on fractions, geometry, functions, and other common pre-algebra topics; and INTEGRATED LESSONS that combine technology with written communication, providing examples of in-depth problem-solving in mathematics. Lessons incorporate spreadsheets or describe how to use calculators, word processors, and presentation software as part of a problem-solving process or as a tool for completing a project. There is also an entire JOURNALING strand on mathematical writing and how to use math journals - simple paper and pencil "technologies" - as a complement to daily instruction. -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- SIGNIFICANT FIGURES AND ROUNDING RULES - Christopher Mulliss A detailed investigation of the "rounding rule" - Where did it come from? How often does it fail? How can it fail? Is there a better alternative? This site supports the teaching of significant figures and rounding rules in high school and college science courses. Included are links to related sites, and a detailed study, "On the Standard Rounding Rule for Multiplication and Division," by Christopher Mulliss and Wei Lee. For more on rounding numbers, see the Dr. Math FAQ: -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- LEARNING STRATEGIES DATABASE Background information, the purposes and advantages of various learning strategies, and descriptions of specific strategies, from the Center For Advancement Of Learning at Muskingum College, New Concord, Ohio. Several general-purpose strategies are suggested, together with recommendations for math: how to use substitution for solving problems involving fractions and variables, and for word problems; and memory strategies for learning terms and definitions, symbols, equations and rules, and problem solutions (the correct order of steps required to solve math problems successfully). -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- CHECK OUT OUR WEB SITE: The Math Forum Ask Dr. Math Problems of the Week Mathematics Library Teacher2Teacher Discussion Groups Join the Math Forum Send comments to the Math Forum Internet Newsletter editors _o \o_ __| \ / |__ o _ o/ \o/ __|- __/ \__/o \o | o/ o/__/ /\ /| | \ \ / \ / \ /o\ / \ / \ / | / \ / \

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