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Visit this site: http://math.rice.edu/~lanius/Geom/

Author:Cynthia Lanius
Description: 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 SAT-Type 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; School-Bus Geometry (a non-Euclidean geometry introduced using a school bus rather than a taxicab; and Glossary of geometric terms. Includes Geometer's Sketchpad sketches to download.

Levels: Middle School (6-8), High School (9-12)
Languages: English
Resource Types: Lesson Plans and Activities, Collections, Internet-Based Projects, Dictionaries, Glossaries, Thesauri, Geometer's Sketchpad
Math Topics: Golden Ratio/Fibonacci, Discrete Math, Higher-Dimensional Geometry, Triangles and Other Polygons, Non-Euclidean Geometry

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