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January 1997: The Mathematics of Cartography - Cynthia Lanius.
What exactly are maps? What is the history of mapmaking? What mathematics do you use with maps? Cynthia Lanius' new Web unit discusses how maps are used and gives examples of different kinds of maps. It covers the history of maps and math topics related to cartography: lines, points, areas, coordinates, etc., in particular scale, coordinate systems, and projection. Math problems featuring Web-based technologies help students learn about latitude and longitude, and a mapmaker crossword puzzle teaches vocabulary. There's a list of cartography sites on the Web to use as resources for learning about maps and careers in mapmaking, and teachers' notes following the NCTM Standards and a bibliography of off-line references are also included.

February 1997: DAU Math Refresher Tutorial
An interactive tutorial which gives a comprehensive view of basic mathematics, covering arithmetic, fractions, exponents, logarithms, quadratic equations, series, functions, limits, domains & ranges, intercepts, graphing functions, derivatives, and integrals. Practice problems and self-tests are included. Intended for use by Defense Acquisition University (DAU) course participants, but can helpful for mathematics students in middle school and above. The Statistics Refresher Tutorial covers topics in basic probability (random variables, expectations, distribution) and statistics (regression, data analysis, clustering).

March 1997: Woodward Academy: AP Statistics On The Web:
Comprehensive statistics resources include information on textbooks, reference materials, software, TI calculator programs, and the College Board. The site also features discussions on apstat-l and a selection of online tests. AP Statistics - A Measure of Excellence: This course from the Buckingham Browne & Nichols School emphasizes projects that require hands-on gathering and analysis of real world data. The site provides homework assignments and makes use of the popular "Workshop Statistics" text.

April 1997: Introduction to Symmetries and Introduction to Wallpaper Patterns.
"Pattern and symmetry are as ancient as rhythm and language, and appear in virtually every human culture." Introduction to Symmetries studies isometries, which preserve distances, including definitions, isometry exercises, and combining symmetries. Homework exercises require the use of software such as The Geometer's Sketchpad and KaleidoTile. The wallpaper unit introduces plane patterns whose symmetries are translations, glide reflections, and rotations. Its contents include definitions; Kali exercises; supplemental materials from Geometry and the Imagination: Names for features of symmetrical patterns; other types of patterns; and how to use Kali. These pages are based on notes by Chaim Goodman-Strauss, revised and edited by Heidi Burgiel.

May 1997: S.O.S. MATHematics.
The Web site of the Department of Mathematical Sciences at the University of Texas, El Paso has created materials to help students do homework, prepare for a test, or get ready for a class. These pages feature the most important esults, techniques, and formulas in college and pre-college mathematics and offer an excellent means of reviewing math concepts. The learning units are presented in worksheet format with examples and interactive exercises, and require the student's active participation. Subjects covered include algebra (with a review of such pre-algebra topics as fractions and decimals), trigonometry, calculus, differential equations, complex variables, and matrix algebra.

June 1997: Alexander Bogomolny's Interactive Mathematics Miscellany and Puzzles.
An award-winning Math site with games, puzzles, quotes, and short essays on a variety of topics. Sections on arithmetic, geometry, algebra, and probability offer a rich lode of explanations and information.

July 1997: The Geometry Junkyard - David Eppstein, Theory Group, ICS, UC Irvine.
A collection of usenet clippings, web pointers, lecture notes, research excerpts, papers, abstracts, programs, problems, and other material related to discrete and computational geometry - some serious and much also entertaining. Eppstein sorts his "junk" into "piles" or topics. Also see Eppstein's other pages, Geometry in Action, which is devoted more to applications and less to pure math, and his non-geometrical Recreational Math area.

August 1997: Calculators and Unit Conversions
    Martindale's Calculators On-line Center is an extensive collection of online tools for calculation and conversion. The many choices offered run the gamut from using an abacus or a slide rule online or calculating equivalents for all kinds of measurements, to evaluating everything from differential equations to Delaunay triangulations. You can also try out over 130 statistical calculators.
    Many online calculators require a java-capable browser. Here's one that doesn't: Entisoft's Measurement conversion Calculator will perform over 500 different unit conversions for distance, area, volume, mass, speed, temperature, pressure, energy, power, force, etc.

September 1997: Real Analysis and Calculus
    Graphics for the Calculus Classroom - Douglas N. Arnold
Animations and still images illustrate concepts from first-year calculus, including: Differentials and Differences; How the Ball Bounces; and Secants and Tangents. The Mathematica and Matlab files used to create these graphics are available, as well as tips for classroom use. Douglas N. Arnold, Professor of Mathematics at Penn State University, has developed these graphical demonstrations to enrich his first-year calculus courses.
    Interactive Real Analysis - Bert Wachsmuth
An online, interactive textbook for Real Analysis or Advanced Calculus in one real variable. Bert G. Wachsmuth is Assistant Professor of Mathematics and Computer Science at Seton Hall University, South Orange, NJ.

October 1997: Shack's Math Problems - Michael Shackleford
A math and logic page that offers 4 marked levels of difficulty, with four-star and unsolved problems for those with a strong math background, and answers and (usually) solutions that explain them.

November 1997: Foundations of Mathematics - Roger Blumberg
A summer 1997 program for high school students from the Division of Special Programs, Columbia University. An introduction to some key mathematical habits and concepts not often taught at the pre-college level, this site serves as a model for presenting and augmenting a course on the Web.

December 1997: Math Teacher Link - A Netmath Coalition Project
Professional development opportunities and classroom resources for high school and lower division college level teachers. For-credit courses and tutorials cover algebra, calculus, geometry, statistics, some programming, and using the Internet. Current non-credit courses include downloadable and online interactive tutorials for the TI-82 and TI-92 calculators, and "UserActive," an interactive HTML tutorial for teachers.

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