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September
- Two additions to the Dr. Math FAQ (30 September 1998)
- False Proofs, Classic Fallacies
- What's wrong with proofs that say 1+1=1, or 2=1?
- Number Bases
- What is base 10? Binary? Hexadecimal? How can you convert from one base to another?
- Latest Additions to the Math Forum's Internet Resource Collection (30 September 1998)
- Over 200 new entries or updates were made to the database during September.
- Recent Additions to the Dr. Math Archives (30 September 1998)
- More than 100 new question-&-answer entries were added to the tables of contents during September 1998.
- Secondary Math Units - Margaret Sinclair (21 September 1998)
- Units for grades 9-10: Data Collecting in the Classroom, Algebraic Problem-solving using Spreadsheets (a unit that emphasizes moving from numerical to symbolic representation), and a newspaper review unit on the Skydome; and grades 11-12: Three Days in the Lab (Sketchpad assignments for seniors when lab time is short); Linear Transformations using Spreadsheets; Show and Tell for Big Kids (investigating math using computers when you have limited lab time); and Investigating Functions Using Spreadsheets (with an emphasis on Microsoft Excel).
- The Elementary Problem of the Week,
The Middle School Problem of the Week, and
The Geometry Problem of the Week (10 September 1998)- The Problem of the Week Projects are up and running, so try your hand and tell your friends!
- Famous Problems in the History of Mathematics (1 September 1998)
- Explore the History of Math through some famous problems from antiquity to today. This Math history project was designed by Isaac Reed of Swarthmore College with the assistance of The Math Forum.
August
- New additions to the Dr. Math FAQ:
- Learning to Factor (31 August 1998)
- A sampling of answers from our archives.
- Learning Multiplication Facts (28 August 1998)
- Tips for parents, teachers, and students for different ways of learning to multiply.
- Dividing by 0 (21 August 1998)
- Why can't you divide by 0? Why is 0/0 "indeterminate" and 1/0 "undefined"? Why is dividing by zero "illegal"?
- Latest Additions to the Math Forum's Internet Resource Collection (31 August 1998)
- Over 100 new entries or updates were made to the database during August.
- Recent Additions to the Dr. Math Archives (31 August 1998)
- More than 115 new question-&-answer entries were added to the tables of contents during August 1998.
- Catalog of Isohedral Tilings by Symmetric Polygonal Tiles (13 August 1998)
- From the article "One Corona is Enough for the Euclidean Plane" by Doris Schattschneider and Nikolai Dolbilin, published in "Quasicrystals and Discrete Geometry," J. Patera, editor, The Fields Institute for Research in Mathematical Sciences Monograph Series, Vol. 10, AMS, Providence, RI, 1998, pp. 207-246.
- Geometric Figures - Formula FAQ (10 August 1998)
- To find formulas for ellipses and ellipsoids, polygons and polyhedra, consult this Frequently Asked Questions unit by Robert Ward a 'math doctor' and volunteer administrator for the Math Forum's interactive project, Ask Dr. Math.
July
- July additions to the archives (31 July 1998)
- Over 150 new entries or updates were made to the Math Forum's Question-and-Answer archives: the Internet Resource Collection, Ask Dr. Math, and the new Teacher2Teacher archive, which now has 135 entries.
- Math Forum Summer Institute: Participant Projects (28 July 1998)
- Projects by onsite and online participants in the Math Forum's 1998 Summer Institute: Developing Internet Mathematics Projects and Resources can now be seen on the Web. Follow the links to see work begun during Sum98, a residential workshop held July 6-11 at Swarthmore College.
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