This resource is part of a series that I am preparing in support of Professor David Hestenes's goal of using Geometric Algebra(GA) to integrate high-school algebra,geometry, trigonometry,and physics into a coherent curriculum. [b]Previous materials in this series:[/b] Dot Product: Geometric Significance and GeoGebra Coding ([url]http://tube.geogebra.org/b/1022879#material/949399[/url]) Inner and Outer Products of Vectors Inscribed in a Circle ([url]http://tube.geogebra.org/b/1022879#material/1015919[/url]) Geometric Algebra: Find unknown vector from two dot products ([url]http://tube.geogebra.org/m/1481375[/url]) [b]Resources prepared by Professor Hestenes and Robert Rowley:[/b] [url]http://geocalc.clas.asu.edu/GA_Primer/GA_Primer/[/url] [url]http://geocalc.clas.asu.edu/GA_Primer/GA_Primer/introduction-to-geometric/high-school-geometry-with/index.html[/url] [b]LinkedIn group for collaborative development of pre-university materials on GA: [/b] Pre-University Geometric Algebra [url]https://www.linkedin.com/groups?home=&gid=8278281[/url] [b]Wiki for the same purpose: [/b] [url]http://preuniversitygeometricalgebra.wikispaces.com/[/url]