Unit 4, Lesson 9, Grade 8 icon
Unit 4, Lesson 9

When Are They the Same?

Open Up Resources 35 min(s)

In this lesson, students apply their knowledge of solving equations by considering two real world situations: two tanks where one is filling and the other is emptying and two elevators traveling above and below ground level. Using the given expressions for each situation, students are asked to determine when the amount of water in the tanks or the travel time of elevators will be the same. Let's use equations to think about situations. Learning targets: students can use an expression to find when two things, like height, are the same in a real-world situation.

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