EXP - Expressions Module Overview
Expressions Module Overview
Introduction
In this module, you will learn to translate words into numbers, variables, and operations and apply the properties of operations to simplify numerical and algebraic expressions. You will also learn how to write expressions in more than one format. Additionally, you will have the opportunity to factor expressions and will see firsthand that using the properties of operations will help to simplify the expressions. Simplifying expressions is an important part of solving mathematical problems.
Essential Questions
- How can you write an expression from a given representation?
- How can the properties of operations be used to simplify and expand linear expressions with rational coefficients?
- How does rewriting an expression help clarify the problem?
- How does rewriting an expression help show how the quantities are related?
- How can factoring help us break down an expression?
Key Terms
The following key terms will help you understand the content in this module.
Expression - An expression is a mathematical phrase that contains operations and numbers. An algebraic expression contains one or more variables.
Coefficient - A coefficient is a number that is multiplied by a variable in an algebraic expression.
Evaluate - To evaluate an algebraic expression, substitute a number for the variable.
Factor - A number that is multiplied by another number to get a product ***to factor is the process of writing a number or an algebraic expression as a product.
Term - Terms are those parts of the expression between addition signs and subtraction signs. They can be a number, variable, or product of numbers and variables.
Like terms - Like terms are terms that have the same variable raised to the same power.
Variable - When a letter represents a number that can vary, it is called a variable.
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