Geometry on Khan Academy: 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.
Solving for variables being multiplied by a fraction
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https://www.youtube.com/watch?v=hDB3qG5aXcc
Note: All Khan Academy content is available for free at (www.khanacademy.org)
Separating the truthteller from the togglers! Created by Sal Khan.
Watch the next lesson: https://www.khanacademy.org/math/math-for-fun-and-glory/puzzles/brain-teasers/v/alien-abduction-brain-teaser?utm_source=YT&utm_medium=Desc&utm_campaign=mathforfunandglory
Missed the previous lesson? https://www.khanacademy.org/math/math-for-fun-and-glory/puzzles/brain-teasers/v/liar-truthteller-brain-teaser?utm_source=YT&utm_medium=Desc&utm_campaign=mathforfunandglory
Math For Fun and Glory on Khan Academy: Strengthen your brain with some mind bending riddles and puzzles.
About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.
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https://www.youtube.com/watch?v=l3OkPYhDi9w
Note: All Khan Academy content is available for free at (www.khanacademy.org)
Completely factoring polynomial given a factor
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https://www.youtube.com/watch?v=I9PiXAbjnMQ
Note: All Khan Academy content is available for free at (www.khanacademy.org)
Thinking about how real GDP can drive real interest rates
Watch the next lesson: https://www.khanacademy.org/economics-finance-domain/macroeconomics/income-and-expenditure-topic/is-lm-model-tutorial/v/lm-part-of-the-is-lm-model?utm_source=YT&utm_medium=Desc&utm_campaign=macroeconomics
Missed the previous lesson? https://www.khanacademy.org/economics-finance-domain/macroeconomics/income-and-expenditure-topic/is-lm-model-tutorial/v/connecting-the-keynesian-cross-to-the-is-curve?utm_source=YT&utm_medium=Desc&utm_campaign=macroeconomics
Macroeconomics on Khan Academy: Topics covered in a traditional college level introductory macroeconomics course
About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.
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https://www.youtube.com/watch?v=blbR5f2dq_g
Note: All Khan Academy content is available for free at (www.khanacademy.org)
Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/precalculus/imaginary_complex_precalc/complex_analysis/e/complex_number_polar_form_intuition?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus
Watch the next lesson: https://www.khanacademy.org/math/precalculus/imaginary_complex_precalc/complex_analysis/v/polar-form-complex-number?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus
Missed the previous lesson?
https://www.khanacademy.org/math/precalculus/imaginary_complex_precalc/complex_analysis/v/absolute-value-of-a-complex-number?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus
Precalculus on Khan Academy: You may think that precalculus is simply the course you take before calculus. You would be right, of course, but that definition doesn't mean anything unless you have some knowledge of what calculus is. Let's keep it simple, shall we? Calculus is a conceptual framework which provides systematic techniques for solving problems. These problems are appropriately applicable to analytic geometry and algebra. Therefore....precalculus gives you the background for the mathematical concepts, problems, issues and techniques that appear in calculus, including trigonometry, functions, complex numbers, vectors, matrices, and others. There you have it ladies and gentlemen....an introduction to precalculus!
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https://www.youtube.com/watch?v=YZRzt_AsuVs
Note: All Khan Academy content is available for free at (www.khanacademy.org)
Introduction to conditional probability
More free lessons at: http://www.khanacademy.org/video?v=xf3vfczoCho
https://www.youtube.com/watch?v=xf3vfczoCho
Applications Problem Factoring Quadratics
Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/algebra/quadratics/factoring-quadratics/e/solving_quadratics_by_factoring?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI
Watch the next lesson: https://www.khanacademy.org/math/algebra/quadratics/factoring-quadratics/v/example-3-solving-a-quadratic-equation-by-factoring?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI
Missed the previous lesson?
https://www.khanacademy.org/math/algebra/quadratics/factoring-quadratics/v/example-1-solving-a-quadratic-equation-by-factoring?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI
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https://www.youtube.com/watch?v=STcsaKuW-24
Note: All Khan Academy content is available for free at (www.khanacademy.org)
More free lessons at: http://www.khanacademy.org/video?v=LiPQuOFVHl4
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https://www.youtube.com/watch?v=LiPQuOFVHl4
Note: All Khan Academy content is available for free at (www.khanacademy.org)