 Geometry Online  Cynthia Lanius
Geometry activities from a geometry class at Milby High School in Houston, Texas. Topics include: History of Geometry (contributions of Egyptians, Babylonians, and Greeks, with links to biographies of major contributors to geometry); Hidden Polygons (locate them on triangular grid paper); Isosceles Triangle Puzzler (use the Isosceles Triangle Theorem to analyze a problem with similar triangles  answers can be submitted online); Circles and Pythagoras; an SATType Quiz (graded online); The Golden Ratio (do a measuring activity and build a rectangle that approaches the golden ratio; Experiment with Volume (demonstration of volume of cylinders; SchoolBus Geometry (a nonEuclidean geometry introduced using a school bus rather than a taxicab; and Glossary of geometric terms. Includes Geometer's Sketchpad sketches to download.
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 K12 Teaching Materials (Mathematics Archives)  University of Tennessee, Knoxville (UTK)
An extensive list of Internet sites with significant collections of materials that can be used in the teaching of mathematics at the K12 level. Organized into categories: lesson plans, schools, software and other K12 Internet math sites.
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 Mathematics  World Lecture Hall
Links to pages created by faculty worldwide who are using the Web to deliver math class materials: course syllabi, assignments, lecture notes, exams, class calendars, multimedia textbooks, etc. Advanced Integer Programming, Advanced Linear Programming, Advanced Nonlinear Programming, Calculus I, Vector Calculus, and Differential Equations, Calculus II and III, Calculus of a Single Variable, College Algebra, Combinatorics Topics for K8 Teachers; Discrete Mathematics for Computer Science Students; eCalculus; Finite Mathematics; Higher Geometry I; History of Math; Interactive Graph Theory Tutorials; Introduction to College Algebra II; Introduction to Differential Equations; Linear Algebra, Probability, and Personal Finance; Linear Programming; Math Foundations of Artificial Intelligence; Mathematical Analysis I; Multivariable Calculus; Multivariable Calculus with Maple Online; Nonlinear Optimization; Numerical Methods for Engineers; Optimization Modeling; Senior Seminar; Statistics; Studies In Mathematics; Technology Tools for Secondary School Mathematics; and Trigonometry.
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 This is MegaMathematics! (MegaMath)  Nancy Casey; Los Alamos National Laboratory
The frontier of mathematics is an exciting place, where mathematicians experiment and play with creative and imaginative ideas, many of them accessible to young children; others (infinity is a good example) whose profound mathematical importance is not widely known or understood. MegaMath is a project of the Computer Research and Applications Group at Los Alamos National Laboratory intended to bring unusual and important mathematical ideas to elementary school classrooms so that young people and their teachers can think about them together.
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