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This site has has interactive explanations and simulations of math from alegrbra to trigonometry. Just click the "interactive" tab on the top left menu and you can choose different simulations. It includes, the complete definition of parabolas, reaching beyond the ability to graph into the realm of why the graph appears as it does....
This site has has interactive explanations and simulations of math from alegrbra to trigonometry. Just click the "interactive" tab on the top left menu and you can choose different simulations. It includes, the complete definition of parabolas, reaching beyond the ability to graph into the realm of why the graph appears as it does. It also has vivid descriptions of angles including circle angles for geometry. It also has calculators for principal nth roots, gdc, matrices, and prime factorization. It's definitely worth checking out. Quote from site: "A parabola is actually a locus of a point and a line. The point is called the focus and the line the directrix. That means that all points on a parabola are equidistant from the focus and the directrix. To change the equation and the graph of the interactive parabola below just click and drag either the point A, which is the focus, or point B, which controls the directrix." This is an interactive site that allows people to change the graph to understand why directrix and focus dictate parabolic graphs.
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I only had a chance to look through it briefly, going through the main menu (the links), probably for about 10 minutes or so, and so far it looks pretty useful for a student taking an Algebra course. I looked at the links provided, and it's pretty useful for both student and teachers who want to review the algebraic concepts.
The content is pretty simple to use. Under the main menu, there are links that takes you to the different concepts, which provides an brief explanation about what it is, and then continues on to show examples of how it is used in the math. It takes you from angles and circles all the way to vectors, and although it is not as thorough and detailed like it would be in a textbook, it does provide to be a good reference. They even have math games and riddles for the student to ponder and try out as well.
It's effective as a reference, and maybe a brief study on the concepts before taking it head on in a math course or text. A student can prepare him/herself using this site.
The layout of the site isn't as intuitive as other sights, so it might be a little harder on the eyes to navigate around. But once you've learn to navigate around, it makes it a lot easier for you to bookmark and figure out where to go.