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In this lesson, we will learn how to use objects that are about one inch, one foot, or one yard long to estimate the lengths of objects and to choose the best unit to use.

Q1:

Choose an appropriate unit for measuring the width of the Atlantic Ocean.

Q2:

Which is a more reasonable estimate for the length of a bedroom: 1 rod or 4 rods?

Q3:

Which of the following heights could be the cruising altitude for an airliner?

Q4:

Sameh wants to know the approximate height of a mountain. Would it be more accurate to have an approximation given to the nearest mile, yard, or foot?

Q5:

Pick the most sensible unit to measure the length of a football field.

Q6:

If you are estimating the height of a person, which units of measure would be most appropriate to use?

Q7:

Pick the most sensible unit to measure the thickness of a book.

Q8:

Yasmine, using a clinometer, worked out the height of an oak tree to be 63 miles. What did she do wrong?

Q9:

Pick the most sensible unit to measure the length of a classroom.

Q10:

Fares wants to measure the height of a door frame as accurately as possible. Should he measure its height to the nearest quarter, eighth, or sixteenth of an inch?

Q11:

Pick the most sensible unit to measure the length of a pencil.

Q12:

Choose an appropriate unit for measuring the distance between two cities.

Q13:

Fares wants to estimate the length of a journey from the east coast to the west coast of the USA.

What would be a disadvantage to estimating this distance in feet?

What would be an advantage to estimating the distance in miles?

Q14:

Nabil wants to estimate the height of an office building with 58 floors.

Which of the following is the best estimate for the height of a ceiling in an office?

Given there is a gap of about 2 ft between each floor in the building, estimate the total height of the building.

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