Linear equations and functions word problems (Khan Academy)

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Solve various word problems that involve real world relationships that can be represented by linear equations or functions. (1) Interpreting linear functions and equations Linear equations word problems: earnings Linear equations word problems: volcano Linear equations word problems: tables Linear graphs word problems Linear graphs word problem: cats Linear equations word problems: graphs Linear equations […]

Functions (Khan Academy)

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Functions are mathematical entities that assign unique outputs to given inputs. Sounds simple? Think again! In this topic you will evaluate, graph, analyze, and create various types of functions. (1) Introduction to functions What is a function? (2) Evaluating functions Evaluating a function: formula Evaluate functions Evaluate a function: graph Evaluate functions from their graph […]

Two-variable linear equations (Khan Academy)

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Learn about linear equations that contain two variables, and how these can be represented by graphical lines and tables of values. (1) Ordered-pair solutions to two-variable linear equations 2-variable linear equations & their graphs Solutions to 2-variable equations Solutions to 2-variable equations Solutions to 2-variable equations Graphing a linear equation: 5x+2y=20 Completing solutions to 2-variable […]

Units of measurement in modeling (Khan Academy)

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Modeling is an amazing world, full of challenges. In this topic, we will start to think about some general modeling concerns, before we dive into modeling situations with different kinds of functions and equations throughout the Algebra curriculum. (1) Intro to dimensional analysis Intro to dimensional analysis Interpreting units in formulas Interpreting units in formulas: […]

One-variable linear inequalities (Khan Academy)

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Learn how to solve linear inequalities with a single variable. For example, solve -3(x+1)>2x-7. Learn how to solve compound inequalities. For example, solve 2x+1>3 AND -x-5

One-variable linear equations (Khan Academy)

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Learn how to solve linear equations that contain a single variable. For example, solve 2(x+3)=(4x-1)/2+7. (1) Algebraic equations basics Variables, expressions, & equations Testing solutions to equations Intro to equations Testing solutions to equations (2) Why we do the same thing to both sides of an equation Same thing to both sides of equations Representing […]

Introduction to algebra (Khan Academy)

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This topic is an overview of the fundamental ideas and tools of algebra. (1) Overview and history of algebra Origins of algebra Abstract-ness The beauty of algebra Intro to the coordinate plane Why all the letters in algebra? (2) Introduction to variables What is a variable? Why aren’t we using the multiplication sign? Evaluating an […]

Khan Academy

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Khan Academy is perhaps the best known free collection of online courses. The subjects span a great range of topics, including everything from math and science to art history. According to their about page: Our mission is to provide a free, world‑class education for anyone, anywhere. A full list of the subjects they offer is […]