**Create algebraic expressions and evaluate them by substituting a given value for each variable(ACMNA176)**

**LO: To create algebraic expressions and to understand the differences between a coefficient, variable and constant.
**

**Know:**

- What an expression is
- The four basic operations of numeracy

**Understand:**

- That expressions can be created

**Do:**

- I can create algebraic expressions

**Essential Questions:**

- What is an expression?
- How can algebraic expressions be created?

**What is an Expression?**

**What is an Expression?**

### An **expression** is one-half of a equation.

x – 6 is an **expression**.

x – 6 = 10 is an **equation**.

### Equations always have an **=** sign.

It makes sense, equations has the word **equal** in it.

**Coefficient** is a number in front of a variable.

**Variable** is the letter that is the “missing value” of an expression.

**Constant** is a number that is included as part of an expression.

**Algebraic Expression Videos**

**Algebraic Expression Videos**

**Student Generated Videos**

**Student Generated Videos**

**Algebraic Expression Worksheets/Textbook Work**

**Algebraic Expression Worksheets/Textbook Work**