LearningReviews.com is a directory of mostly free interactive K-12 educational websites, reviewed by and for parents, teachers and students. Fee-based websites listed here are award-winning or highly rated by education and parent organizations.
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Educational Websites
Math Precalculus Interactives & Lessons
Precalculus Interactives & Lessons
Includes trigonometry and logarithms.
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| Author/Host of Website |
Walter Milner/Free Download Manager |
| Type of Educational Content |
Software |
| Visit the website: Argand 1.0 | |
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| Grade Level | High (9-12) |
From site: Displays the real and imaginary parts of complex functions, or conformal transformations. Bulit-in functions include sine cosine tan sinh cosh exp and Log, and these can be combined...
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| Author/Host of Website |
EMTeachline/Free Download Manager |
| Type of Educational Content |
Software |
| Visit the website: EMMentor Light | |
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| Grade Level | Middle and High (6-12) |
From site: Free interactive problem solving software offers math problems in arithmetic, pre-algebra, algebra, trigonometry and hyperbolic trigonometry, a variety of appropriate techniques to solve problems and a unique system...
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| Author/Host of Website |
dave/catcode.com |
| Type of Educational Content |
Website |
| Visit the website: FAQ About Trigonometry | |
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| Grade Level | High (9-12) |
From site: Q: What is trigonometry?A: Trigonometry is the study of how the sides and angles of a triangle are related to each other. Q: WHAT? Thats all?A: Yes, thats...
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| Author/Host of Website |
Ted Wilcox |
| Type of Educational Content |
Website |
| Visit the website: Free Math Help: Trigonometry | |
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| Grade Level | High (9-12) |
View textbook style lessons as well as video examples from the Geometry section. Videos include the laws of sines and cosines and trigonometric functions, identities and ratios.
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| Author/Host of Website |
Wolfram Demonstration Project |
| Type of Educational Content |
Website |
| Visit the website: High School Precalculus | |
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| Grade Level | High (9-12) |
These free downloadable demonstrations give students a graphic representation of the mathematical calculations they are learning. There are 90 demonstrations from composing functions using dynagraphs to roots of multiple numbers, from...
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| Author/Host of Website |
Vera Fleischer/GalaxyGoo |
| Type of Educational Content |
Website |
| Visit the website: Sine Curve Visualization Tool | |
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| Grade Level | High (9-12) |
Trigonometry Sine Curve Visualization Tool: As you drag the ball along the perimeter of the circle, a line is drawn between the point on the circle and the corresponding point...
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| Author/Host of Website |
Paul Dawkins/lamar.edu |
| Type of Educational Content |
Website |
| Visit the website: Trig Cheat Sheet | |
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| Grade Level | High (9-12) |
This Trig Cheat Sheet is a pdf reference outlining the most important points of trigonometric functions. It includes diagrams and definitions of trig functions, facts and properties, formulas and identities,...
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| Author/Host of Website |
Doug Simms Online |
| Type of Educational Content |
Website |
| Visit the website: Trigonometry I | |
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| Grade Level | High (9-12) |
From site: This page is devoted to the learning of Trigonometry I (basic trigonometry). It is part of the Secondary 4 (Grade 10) math curriculum where I teach, but this material is required knowledge...
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| Author/Host of Website |
Edward Zobel/Zona Land |
| Type of Educational Content |
Website |
| Visit the website: Trigonometry Realms | |
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| Grade Level | High (9-12) |
This is an introductory trigonometry unit that explores the definitions and graphs of trig functions.
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| Author/Host of Website |
NeoK12 |
| Type of Educational Content |
Website |
| Visit the website: Trigonometry Videos | |
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| Grade Level | High (9-12) |
NeoK12 Trigonometry Videos have lessons to help math students learn about the relationships between the sides and angles of triangles, and the mathematical equations - trigonometric functions - which describe these...
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