Unit 1: The Language Of Algebra

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Module 0 | Unit 1: The Language of Algebra Key Concepts: Expressions, operations on real numbers, and exponents and roots
Essential Questions:
How can you use variables, constants, and operation symbols to represent words and phrases?
How do you add and subtract real numbers?
How do you multiply and divide real numbers?

Variable: Symbol or letter that represents an unknown number
Constant: A number that doesn’t change
Numerical Expression: An expression that has only numbers and operations.
Algebraic Expression: An expression that has variables, constants, and operations.
When you evaluate an expression you find its value. In an algebraic expression, you substitute the variables for numbers then simplify.
Power: an expression written with
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