Lesson objective: Apply formulas to find area, perimeter, and the measure of a missing side.

This lesson provides an opportunity for students to apply their knowledge and understanding of area and perimeter to a real-life situation. Students are asked to help figure out the dimensions of a new petting zoo.

Key Concept students will use:

- We can use the relationship between multiplication and division to solve mathematical and real-world problems.

Skills students will use:

Students engage in Mathematical Practice 1 (Make sense of problems and persevere in solving them) as they make connections to prior knowledge to find an entry point.

Students engage in Mathematical Practice 8 (Look for and express regularity in repeated reasoning) as they connect principles of operations to efficiently solve a multistep problem.

**Key vocabulary: **