Math Example--Ratios and Rates--Example 17

Topic

Ratios and Rates

Description

This example explores the concept of unit rates using the cost of gasoline. The image shows a red gasoline container, and students are asked to calculate the cost per gallon of gas given the total cost and volume.

Understanding unit rates is a fundamental skill in mathematics with numerous real-world applications. This example demonstrates how to calculate a unit rate by dividing the total cost by the total quantity, illustrating the practical use of division in everyday scenarios like purchasing gasoline.

Exposure to multiple worked-out examples is crucial for students to fully comprehend the concept of unit rates. Each example in this series presents a unique scenario, allowing students to practice calculating rates in various contexts. This repetition helps reinforce the concept and builds confidence in applying these skills to real-world situations.

Teacher's Script: Let's look at this problem involving the cost of gasoline. We know the total cost to fill the container and its capacity. How can we find the cost per gallon? What mathematical operation do we need to use? Remember, we're looking for the rate, which is the cost for one gallon. Can you walk me through the calculation step by step?

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