Who is Khan?Salman Amin Khan is a Bangladeshi-American educator, entrepreneur, and former hedge fund analyst. He is the founder of the Khan Academy, a free online education platform and nonprofit organization. From a small office in his home, Khan has produced more than 4,800 video lessons teaching a wide spectrum of academic subjects, mainly focusing on mathematics and sciences.
As of September 24, 2014, the Khan Academy channel on YouTube attracted 2,201,162 subscribers and the Khan Academy videos had been viewed nearly 492 million times. In 2012, Time named Salman Khan in its annual list of the 100 most influential people in the world. Forbes magazine featured Khan on its cover with the story "$1 Trillion Opportunity." |
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More Khan Academy
Algebra BasicsAlgebra is a beautiful and important area of study with unlimited applications. One can spend a lifetime studying and exploring it (and some people do). If you're not one of them, and are looking to learn, review or practice the most core ideas in Algebra, you've found your home. This subject is ideal for anyone looking to prepare for a high school or college placement exam. It covers all of the foundational ideas in algebra and related topics in pre-algebra and geometry. If you're looking for more exhaustive coverage, then the Algebra I & II subjects may be better for you.
Geometry
We are surrounded by space. And that space contains lots of things. And these things have shapes. In geometry we are concerned with the nature of these shapes, how we define them, and what they teach us about the world at large--from math to architecture to biology to astronomy (and everything in between). Learning geometry is about more than just taking your medicine ("It's good for you!"), it's at the core of everything that exists--including you. Having said all that, some of the specific topics we'll cover include angles, intersecting lines, right triangles, perimeter, area, volume, circles, triangles, quadrilaterals, analytic geometry, and geometric constructions. Wow. That's a lot. To summarize: it's difficult to imagine any area of math that is more widely used than geometry.
Algebra IIYour studies in algebra 1 have built a solid foundation from which you can explore linear equations, inequalities, and functions. In algebra 2 we build upon that foundation and not only extend our knowledge of algebra 1, but slowly become capable of tackling the BIG questions of the universe. We'll again touch on systems of equations, inequalities, and functions...but we'll also address exponential and logarithmic functions, logarithms, imaginary and complex numbers, conic sections, and matrices. Don't let these big words intimidate you. We're on this journey with you!
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