Unit 3 Lesson 1 - Burj Khalifa

The Burj Khalifa

Lesson # 1

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Let’s
investigate the
Burj Khalifa
building.

Today’s Objective

❏ I can see that thinking about “how much for 1” is useful

for solving different types of problems.

Estimating Height

Warm Up
●Think Pair Share

Use the picture to estimate the height of
Hyperion, the tallest known tree.

Discuss your estimates with a partner:

●How close are your estimates to one another?

●How did you decide on the unit of measure?

●What was important to you in the image when
making your estimate?

●Could you record your measurement using a
different unit?

Window Washing

Activity 1
●MLR7: Compare and Connect

What do you know about the Burj Khalifa?

Window Washing

A window-washing crew can finish 15 windows in 18
minutes.

If this crew was assigned to wash all the windows on
the outside of the Burj Khalifa, how long will the crew
be washing at this rate?

​Number of Windows	​Time in Minutes
​	​
​	​
​	​
​	​
​	​
​	​

Climbing the Burj Khalifa

Activity 2
●MLR7: Compare and Connect

●MLR6: Three Reads

●Think Pair Share

Climbing the Burj Khalifa

In 2011, a professional climber scaled the outside of the Burj Khalifa, making it all the way to
828 meters (the highest point on which a person can stand) in 6 hours.

Assuming they climbed at the same rate the whole way:

1.

How far did they climb in the first 2 hours?

2.

How far did they climb in 5 hours?

3.

How far did they climb in the final 15 minutes?

Lesson Synthesis

1 minutes per window

138 meters per hour

1

5

●If the Burj Khalifa had 10,000 windows, how many minutes would it take the
washing crew to clean all of them? 100,000 windows?

●How high is the climber after 2.5 hours? 2.25 hours? 2.2 hours?

Today’s Goals

❏ I can see that thinking about “how much for 1” is useful

for solving different types of problems.

Going Up?

Cool Down