Algebra foundations
9 videos
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Algebra 1 - What is a Variable?
Learn what variables are in algebra using a real-world example of hourly pay plus tips. Discover how one expression can represent many different outcomes.
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Algebra 1 - Why Algebra Ditches the × Sign
Learn why algebra avoids the × symbol and uses dots, parentheses, or side-by-side notation to show multiplication clearly without confusing variables with the times sign.
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Algebra 1 - Evaluating Expressions by Plugging In
Learn how to evaluate algebraic expressions using a lemonade stand profit example. Covers substitution, order of operations, and graphing with step-by-step guidance.
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Algebra 1 - Evaluating Expressions with Fractions and Decimals
Learn to evaluate algebraic expressions with fractions and decimals by substituting values and simplifying. Example: 5m + 4n when m = 0.6 and n = 3/4.
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Algebra 1 - Combining Like Terms
Learn how to combine like terms in algebra by adding coefficients of variables with the same power. Includes a step-by-step example simplifying 4x+7y+6x-2y.
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Algebra 1 - Simplifying Expressions with Distribution
Learn the distributive property in algebra, how to distribute positive and negative numbers, and combine like terms. Avoid common mistakes with negative signs.
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Algebra 1 - How to Spot Equivalent Expressions
Learn how to identify equivalent expressions by simplifying using distribution and combining like terms. Includes examples like 3x + 2x = 5x and 2(x + 3) + 4x = 6x + 6.
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Algebra 1 - The Coordinate Plane: Your Map for Algebra
Learn how the coordinate plane works using x and y axes to plot points. Discover how to navigate left, right, up, and down to locate any position on a graph.
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Algebra 1 - Why You Can't Divide by Zero
This video explains why division by zero is undefined, exploring limits approaching zero and why 0/0 is indeterminate, wrapping up an algebra foundations unit.