CONFIDENTIAL 1

Good Afternoon!Today we will be learning about

Customary units of weight

Let’s warm up :

Write <, > or = :

1) 7 fluid ounces (fl. oz) 2 cup (c)

2) 3 cups (c) 1 pint (pt)

3) 2 pints (pt) 2 quart (qt)

4) 9 quarts (qt) 2 gallon (gal)

CONFIDENTIAL 2

Let’s review what we did in the previous chapter

CAPACITY: It is a measure of a dry or liquid volume of a container.

Like, we can say that:A cup of juice is equal to 8 ounces of fluid.

An ounces (fl. oz.) is used to measure capacity in the customary system.

CONFIDENTIAL 3

Review

The container has a capacity of 1 gallon.

A coke drink is about 12 fluid ounces.

A regular cup of coffee is about one cup.

A can of oil for the car is about one quart.

A large milk container is about a gallon.

CONFIDENTIAL 4

ReviewReview

From smallest to greatest capacity measurements are compared as:

When measuring capacity in the customary system the common units used are Ounces,

cup, pint, quart, and gallon.

Ounces, cup, pint, quart, and gallon.

CONFIDENTIAL 5

Review

Customary Units of Capacity

8 fluid ounces (fl. oz) = 1 cup (c)

2 cups (c) = 1 pint (pt)

2 pints (pt) = 1 quart (qt)

4 quarts (qt) = 1 gallon (gal)

Customary Units use to measure the capacity are:

CONFIDENTIAL 6

Today we will learn about the Customary units of measure for

weight.

WEIGHT: It is a customary measurement that tells how heavy an object is.

Like, we can say that:The dog’s weight is equal to 12 pounds.

An ounces (oz) is used to measure weight in the customary system.

CONFIDENTIAL 7

History

The Babylonians' unit of weight was the ka and the GUR. The GUR equaled to about 80 gallons. These

were the earliest known units given for weight.

The Hebrews' units were the bat, log, and the hin. Like the customary system, the Hebrews had units

to measure both dry and wet substances.

The Roman system developed the pinte to measure liquid and the quart to measure

dry substances.

CONFIDENTIAL 8

The cat’s weight is 9 pounds.

A strawberry’s weight is 1 ounce (oz).

A pineapple’s weight is 1 pound (lb).

A car’s weight is 1 ton (T).

CONFIDENTIAL 9

When measuring capacity in the customary system the common units used are Ounces,

pound , and ton .

From smallest to greatest capacity measurements are compared as:

Ounces, pound and ton .

CONFIDENTIAL 10

Customary Units of Weight

16 ounces (oz) = 1 pound (lb)

2,000 pounds (lb) = 1 ton (T)

Customary Units use to measure the weight are:

When converting any unit of measurements if you want:To change to a larger unit, divide.

To change to a smaller unit, multiply.

CONFIDENTIAL 11

Reading a Scale

Scales show weight in pounds and fractions of a pound which include:

halves, fourths, eighths, and sixteenths.

Reading a scale marked with pounds and fractions of a pound is similar to reading a ruler.

The only difference is that a scale has the geometric shape of a circle.

CONFIDENTIAL 12

When reading the scale, find the nearest whole pound before the arrow shown on the scale.

Then find the fraction of a pound that the arrow is pointing to.

The total amount is read as a fraction if it is under a pound, exactly a pound, or a mixed fraction if it is over a pound.

CONFIDENTIAL 13

A shows 9 pound. 16

B shows 1 pound.

C shows 3 pounds. 4

1D shows 1 pounds. 2

2

E shows 1 pounds. 16

3

F shows 5 pounds. 8

3

CONFIDENTIAL 14

Which is more reasonable for the weight of a bag of oranges – 1 pound or 1 ounce?

A bag of oranges is too large to weigh an ounce. An ounce would be the

weight of something very light. So, measuring in terms of pound would

be more appropriate.

CONFIDENTIAL 15

BREAK

CONFIDENTIAL 16

Title: Format: WebEx Web BrowserDouble-click to edit

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Assignment

What unit would you use to measure the weight for each?

1) A math book.

2) An elephant.

3) A paper napkin.

4) A bag of apples.

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5) What is the smallest unit to measure the weight?

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6) What is the largest unit to measure the capacity?

CONFIDENTIAL 20

Write <, > or = :

7 ) 15 ounces (oz) 1 pound (lb)

8) 3,000 pounds (lb) 1 ton (T)

CONFIDENTIAL 21

9) To change to a larger unit, _______.

10) To change to a smaller unit, _______.

Fill in the blanks:

CONFIDENTIAL 22

Very Good!Let's Review

WEIGHT: It is a customary measurement that tells how heavy an object is.

Like, we can say that:The dog’s weight is equal to 12 pounds.

An ounces (oz) is used to measure weight in the customary system.

The cat’s weight is 9 pounds.

A strawberry’s weight is 1 ounce (oz).

A pineapple’s weight is 1 pound (lb).

A car’s weight is 1 ton (T).

CONFIDENTIAL 23

Review

When measuring capacity in the customary system the common units used are Ounces, pound , and

ton . From smallest to greatest capacity measurements are compared as:

Ounces, pound and ton .

Customary Units of Weight

16 ounces (oz) = 1 pound (lb)

2,000 pounds (lb) = 1 ton (T)

Customary Units use to measure the weight are:

When converting any unit of measurements if you want:To change to a larger unit, divide.

To change to a smaller unit, multiply.

CONFIDENTIAL 24

ReviewReading a

Scale

When reading the scale, find the nearest whole pound before the arrow shown on the scale.

Then find the fraction of a pound that the arrow is pointing to.

The total amount is read as a fraction if it is under a pound, exactly a pound, or a mixed fraction if it is over a pound.

CONFIDENTIAL 25

Review

A shows 9 pound. 16

B shows 1 pound.

C shows 3 pounds. 4

1D shows 1 pounds. 2

2

E shows 1 pounds. 16

3

F shows 5 pounds. 8

3

CONFIDENTIAL 26

You have done a nice job.See you in the next session.