## Construction Site Math: Ratios

# Description

In this real-world application of ratios, students will learn what a ratio is, including ratios with three terms. They will see different ways of writing ratios, including fractions in simplest form.

a:b $\frac{a}{b}$ a to b

Two short videos introduce the concept of ratios and each video includes real-world examples of ratios. Then several formative assessments are used to test for understanding.

Students then look at the application of ratios to the mixing of concrete at a construction site, starting with a video then followed by an assessment.

This lesson can be assigned to individual students or teams of students. The lesson can be completed in about 20 minutes.

#### Math Concepts

- Ratios and Rates
- Algebra

#### Learning Objectives

- Identifying ratios
- Simplifying ratios
- Working with ratios with three items

#### Prerequisite Skills

- Writing fractions
- Simplifying fractions

Common Core Standards | CCSS.MATH.CONTENT.6.RP.A.1, CCSS.MATH.CONTENT.7.RP.A.2 |
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Lesson Duration | 20 mins |

Grade Range | 6th - 7th Grade |