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•The Textpotential Educational Organization: A nonprofit organization devoted to producing engaging educational content for you.
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•Sean Beatty’s Math Teaching Site
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•The history behind 360 degrees at the Drexel Math Forum.
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•Survival Guide For Students Taking University Courses In Science and Mathematics
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•Manipula Math Applet Collection
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•Math Applets
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•10 Years of SOHO (Movies of the Sun)
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•Mac Tutor History of Mathematics
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•MIT OpenCourseware. Ever wanted to go to MIT? Now you can for free.
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•Astronomy Picture of the Day
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•Neat Physics and Math Java Applets And More
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•More Physics Java Applets
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•Vibration and Wave Java Applets
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•All You Ever Wanted To Know About Pascal’s Triangle And More
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•Wikipedia - “Mathematician”
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•Famous Mathematicians in History
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•A Precalculus Weblet (A full free Precalculus Textbook online)
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•Dave's Short Course in Trigonometry Make sure you check this one out!
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•Wikipedia - Trigonometric Function
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•Graphing Trig Applet
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•Dave's Short Course on Complex Numbers
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•A tutorial on Complex Numbers
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•A Simple Complex Number Calculator
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•Graphing Trig
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•Sine Function A,B,C,&D
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•Graph of y = sin x
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•Six Trig Functions
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•Doug's Math Applets
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•Modeling with the Sine Function
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•Wikipedia’s Trigonometric Identities Make sure you check this one out!
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•Trig Without Tears
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•Double Angles and Half Angles
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•MacTutor History of Mathematics
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•The Unit Circle and Radian Measure
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•Common Angles Around a Circle
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•The Unit Circle and The Wrapping Function
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•The Law of Sines Amgibuous Case Applet
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•Yet Another Animated Graph of Sine from the Unit Circle
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•Connally High School Precalculus and Calculus Home Page
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•A Tutorial Site for learning how the evaluate the trig functions
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•Cowculus on the Web