Lesson objective: Apply understanding of how to create and interpret expressions without evaluating them.

This lesson provides an opportunity for students to apply their knowledge and understanding of creating and interpreting expressions to a real-life situation. Students are asked to analyze the scores that three competitors have earned while playing a trivia game called "Are You Smarter than Your Classmates?"

Key Concept students will use:

- The goal of writing numerical expressions is not always to compute an "answer."

Skills students will use:

- create numerical expressions for a real-life situation
- describe a real-life situation for a numerical expression that has been created
- interpret the meaning of a numerical expression without evaluating it

Students engage in Mathematical Practice 2 (reason abstractly and quantitatively) as they write and interpret expressions without finding their numerical value.

**Key vocabulary: **

- calculation
- evaluate
- numerical expression