Unit 3 Lesson 1 (Grade 6 Illustrative Mathematics)

Unit 3 Lesson 1 (Grade 6 Illustrative Mathematics)

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Estimate the height of Hyperion, the tallest known tree.

The Statue of Liberty is around 300 ft tall.

Open Ended

What was your estimate?

The Burj Khalifa is the tallest artificial structure in the world and is located on the coast of the Arabian Gulf, surrounded by a desert.

Open Ended

How many windows would you "guess" or estimate to be on the outside of this building?

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

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

Multiple Choice

What do we need to know in order to answer this question?

• How many feet tall is the building?

• How many windows does the building have?

• What is the surface area of the building?

Fill in the Blanks

How many windows can be washed in 90 minutes?

Fill in the Blanks

How many minutes will it take the crew to wash all 24,348 windows?

What did this student do wrong?

To find the answer, the student calculates 5/6 minutes per window (same is 15/18 minutes per window).

Raise your hand when you know.

In 2011, a professional climber scaled the outside of the Burj Khalifa, making it all the way to 828 meters in 6 hours.

Assuming he climbed at the same rate the whole way, How far did the person climb in the first 2 hours?

Fill in the Blanks

How far did he climb in the first 2 hours?

Fill in the Blanks

How far did he climb in 5 hours?

How far did he climb in the final 15 minutes?

Talk to your shoulder partner and work together to find the answer. When your group has your answer figured out, raise your hand and be prepared to show me.

An object on the moon weighs less than it does on Earth because the moon has much less mass than Earth.

A person who weighs 100 pounds on Earth weighs 16.5 pounds on the moon. If a boy weighs 60 pounds on Earth, how much does he weigh on the Moon?

figure it out now.......................

Multiple Choice

What does the boy weigh on the Moon?

• 10 lb

• 11.4 lb

• 9.25 lb

• 9.9 lb

Fill in the Blanks

Every 100 pounds on Earth are equivalent to 38 pounds on Mars.

If the same boy that weighs 60 pounds on Earth travesl to Mars, how much would he weigh there?

Multiple Choice

What should you do first to solve the following problem?

An elevator travels 310 feet in 10 seconds. At that speed, how far can this elevator travel in 12 seconds?

• Divide 310 by 10

• Divide 10 by 310

• Multiply both 310 and 10 by the number 2

• 31 x 12

Open Ended

An elevator travels 310 feet in 10 seconds. At that speed, how far can this elevator travel in 12 seconds?

Do not answer the question, but tell me what you would do first to solve this problem.

Multiple Choice

So, how far can the elevator travel in 12 seconds if it can travel 310 feet in 10 seconds?

• 31 feet

• 331 feet

• 372 feet

• 120 feet

Fill in the Blanks

Han earns $33.00 for babysitting 4 hours. At this rate, how much will he earn if he babysits for 7 hours?

Multiple Choice

The cost of 5 cans of dog food is $4.35. How would I find what 47 cans would equal? (DO NOT SOLVE THE PROBLEM...TELL HOW YOU WOULD!)

• Find out how much 7 cans would cost, then multiply by 40.

• Find out how much 50 cans would cost, then divide by 5.

• Find out how much 1 can would cost, then multiply 47 by that number.

Multiple Choice

How much would 11 cans of dog food cost if you can buy 5 cans for $4.35?

• $0.87

• $0.78

• $47.85

• $9.57