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As of this week, our subscribers number more than 3000! 17 April 2000 Vol. 5, No. 16 THE MATH FORUM INTERNET NEWS Euclidean/Spherical/Hyperbolic Spaces - Henderson Courses - Young | Constructor - Soda EXPERIENCING GEOMETRY IN EUCLIDEAN, SPHERICAL, AND HYPERBOLIC SPACES - David W. Henderson; Cornell University http://www.math.cornell.edu/~dwh/books/eg00/ A book that presents a series of problems. Most of the chapters start intuitively and are accessible to a general reader with no particular mathematics background; however, the discussions were written for mathematics majors and mathematics teachers and thus assume a corresponding level of interest and mathematical sophistication. This expanded and revised edition of _Experiencing Geometry on Plane and Sphere_ ranges from What is Straight? through theorems and postulates to polyhedra, manifolds, and the shape of space. It includes an appendix with Euclid's Definitions, Postulates, and Common Notions, http://www.math.cornell.edu/~dwh/books/eg00/00EG-AA/ and an annotated bibliography, http://www.math.cornell.edu/~dwh/books/eg00/00EG-biblio/ -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- COURSES - Elaine Young Required math courses for majors in Elementary Education, Special Education, and Early Childhood Education at the University of Oklahoma - Arithmetic for Elementary Teachers http://faculty-staff.ou.edu/Y/Elaine.Young-1/Math_2213_webpages/math2213_frames.html Illustrated introductions to the concepts of real numbers, operations, properties, base 5, divisibility, prime numbers, greatest common divisor (GCD) and least common multiple (LCM), sequences, and functions. - Data Analysis and Geometrical Systems http://faculty-staff.ou.edu/Y/Elaine.Young-1/math3213_frames.html Illustrated introductions, with vocabulary glossaries, to concepts of probability, statistics, and geometry. A page of statistical graphs elaborates on the advantages and disadvantages of representing data with frequency tables, pictographs, line plots, pie charts, map charts, histograms, bar graphs, line graphs, frequency polygons, scatterplots, stem and leaf plots, and boxplots. http://students.ou.edu/Y/Elaine.Young-1/stat_graph.html - Using Children's Literature in Mathematics http://students.ou.edu/Y/Elaine.Young-1/literature.html A list of children's books, by mathematical category, that can be used in math lessons. -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- CONSTRUCTOR - Soda http://sodaplay.com/ Constructor animates and edits two-dimensional models made out of masses and springs. The springs can be controlled by a wave to make pulsing muscles, and you can construct models that bounce, roll, walk, etc. Try some of the ready-made models or build your own. -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- 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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