Lesson objective: Apply knowledge of how to create, interpret, and evaluate expressions with all four operations and parentheses in order to come up with a real-life situation for a numerical expression.

This lesson provides an opportunity for students to apply their knowledge and understanding of creating, evaluating, and interpreting expressions to a real-life situation. Students are asked to choose at least one of three expressions of varying difficulty and come up with a real-life situation that the expression could represent. Then, the student needs to evaluate the expression using the order of operations.

Key Concept students will use:

Skills students will use:

- evaluating numerical expressions using the order of operations
- interpreting the meaning of the calculations completed in an expression
- creating a real-life situation that is represented by an assigned expression

Students engage in Mathematical Practice 2 (reason abstractly and quantitatively) as they create a real-life situation for at least one of three expressions that are at three different levels of difficulty and then evaluate the expression(s) they chose.

**Key vocabulary: **

- calculate
- evaluate
- numerical expression
- represent

**Special materials needed:**

- highlighter, if desired, so students can highlight parts of the expressions as they evaluate them