Quadrivium
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Dennis, David; Addington, Susan  
"Dedicated to the reform of mathematics education and curriculum through a modern reinvention of the medieval quadrivium" — the upper four liberal arts of geometry, astronomy, arithmetic, and music. The secondary curriculum "Mathematical Intentions" freely offers 50 halfhour lectures in mp3 format, many supporting documents in PDF format, and interactive GeoGebra applets in dynamic geometry and spreadsheets. The textbook "Measuring the World" integrates technology as a tool for problem solving, and "opens the way for a future mathematics curriculum that takes full advantage of modern mathematical technology, in which arithmetic algorithms are studied not only for skills, but also to build understanding about how numbers work."  


Levels:  Elementary, Middle School (68), High School (912) 
Languages:  English 
Resource Types:  Audio, Courses, Lesson Plans and Activities, Textbooks, Web Interactive/Java 
Math Topics:  Basic Algebra, Linear Algebra, Arithmetic/Early Math, Polyhedra, Euclidean Plane Geometry, History and Biography, Number Theory, PreCalculus 
Math Ed Topics:  Reform 
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