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12 February 2001 Vol. 6, No. 7 THE MATH FORUM INTERNET NEWS Planetqhe.com - D.K. Harris | Visual Fractions - R.E. Rand LOGO Foundation - Michael Tempel PLANETQHE.COM - David Kay Harris http://www.planetqhe.com David Kay Harris started the Planetqhe project in April of 1999, when he was a graduate student at the University of Bristol, England. The site focuses on using methods of probability to solve counter-intuitive problems and deepen students' understanding and competence in the domain. The content of the site emphasizes the many situations where human beings answer not only the fundamental questions of "How many?" or "How much?" but also the question, "How Likely?" Sections include: - Why Planetqhe? Brief history and rationale of the site - Essential questions: The frame for the Planetqhe Curriculum and a call for papers - Teacher's notes: Please read these before use - Student support materials: Learn the basics needed - Communication Centre - Student projects - Recommended reading - The Activities: Probabilistic learning activities, applets, spreadsheets, and suggested Websites - Technical specifications -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- VISUAL FRACTIONS - Richard E. Rand http://www.visualfractions.com Visual Fractions aims to reduce "fractionitis," or fraction anxiety, by helping adults and children alike picture fractions and the operations that can be performed on them. There are instructions and problems to work through for the operations of addition, subtraction, multiplication, and division, first using fractions and then working with mixed numbers. Number lines are used to picture the addition and subtraction problems, while an area grid model is used to illustrate multiplication and division problems. Also included are short games where the user guesses fractional parts of a hedge while trying to find the location of Grampy's and then Granny's various hiding places. Separate activities include: - Identify fractions - Rename fractions - Compare fractions - Add fractions - Subtract fractions - Multiply fractions - Divide fractions A Java plug-in is required. Each fraction application should run on the latest versions of Netscape Navigator or Internet Explorer. Specific set-up instructions are included on the information page: http://www.visualfractions.com/inform.htm -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- LOGO FOUNDATION - Michael Tempel http://el.www.media.mit.edu/groups/logo-foundation/ Information and resources for learning and teaching LOGO. This programming environment has roots in constructivist educational philosophy, and has been developed over the past 28 years to support constructive learning. Table of Contents includes: - What's New - Calendar of Events - About the Foundation - What is LOGO? - LOGO Foundation Services - On Line Publications - LOGO Resources - LOGO Products One of the Web-based and public domain versions of LOGO can be accessed here: http://www.embry.com/rLogo/ This site includes a tutorial consisting of eight sample lessons, programmer's reference, source information, and a set of downloadable Java runtime classes that incorporates rLogo programs into your web pages. -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- CHECK OUT OUR WEB SITE: The Math Forum http://mathforum.org/ Ask Dr. Math http://mathforum.org/dr.math/ Problems of the Week http://mathforum.org/pow/ Mathematics Library http://mathforum.org/library/ Teacher2Teacher http://mathforum.org/t2t/ Discussion Groups http://mathforum.org/discussions/ Join the Math Forum http://mathforum.org/join.forum.html Send comments to the Math Forum Internet Newsletter editors _o \o_ __| \ / |__ o _ o/ \o/ __|- __/ \__/o \o | o/ o/__/ /\ /| | \ \ / \ / \ /o\ / \ / \ / | / \ / \ |

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