The digital SAT is coming. Make Khan Academy's Official Digital SAT Prep a part of your district partnership to ensure that you and your students are prepared. Learn more at https://bit.ly/dSAT1115 ... https://www.youtube.com/watch?v=TnWG6709flU Note: All Khan Academy content is available for free at (www.khanacademy.org)

Deductive Reasoning 3 Watch the next lesson: https://www.khanacademy.org/math/precalculus/seq_induction/deductive-and-inductive-reasoning/v/u12-l1-t3-we1-inductive-reasoning-1?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus Missed the previous lesson? https://www.khanacademy.org/math/precalculus/seq_induction/deductive-and-inductive-reasoning/v/deductive-reasoning-2?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! 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. ... https://www.youtube.com/watch?v=lYLaaMObgkw Note: All Khan Academy content is available for free at (www.khanacademy.org)

More free lessons at: http://www.khanacademy.org/video?v=EgtB1aF3MIU ... https://www.youtube.com/watch?v=EgtB1aF3MIU Note: All Khan Academy content is available for free at (www.khanacademy.org)

Your teachers will tell you that being able to apply (or put to use) concepts helps you to learn them better. Here's a word problem in which you have to apply your knowledge of equivalent fractions. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/visualizing-equiv-fracs-pre-alg/e/visualizing-equivalent-fractions?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/visualizing-equiv-fracs-pre-alg/v/equivalent-fraction-word-problem-example-2?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/visualizing-equiv-fracs-pre-alg/v/visualizing-equivalent-fractions?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Pre-Algebra on Khan Academy: No way, this isn't your run of the mill arithmetic. This is Pre-algebra. You're about to play with the professionals. Think of pre-algebra as a runway. You're the airplane and algebra is your sunny vacation destination. Without the runway you're not going anywhere. Seriously, the foundation for all higher mathematics is laid with many of the concepts that we will introduce to you here: negative numbers, absolute value, factors, multiples, decimals, and fractions to name a few. So buckle up and move your seat into the upright position. We're about to take off! ... https://www.youtube.com/watch?v=dCQbfaQZtaY Note: All Khan Academy content is available for free at (www.khanacademy.org)