In this elementary algebra review, students will learn how to evaluate variable expressions by plugging in values and write phrases as a variable expression, equation, or inequality. They'll practice using order of operations and learn to be careful of common mistakes such as assuming that (x + y)^3 is the same as x^3 + y^3. By the end of the lesson, they'll be able to write algebraic expressions for phrases such as "5 times the number decreased by 4" and turn sentences into equations or inequalities using x to represent the unknown number.
Evaluating variable expressions by plugging in values, writing phrases as a variable expression, equation, or inequality
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com