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)

CONFIDENTIAL2 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.

CONFIDENTIAL3 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.

CONFIDENTIAL4 Review 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.

CONFIDENTIAL5 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:

CONFIDENTIAL6 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.

CONFIDENTIAL7 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.

CONFIDENTIAL8  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).

CONFIDENTIAL9 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.

CONFIDENTIAL10 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.

CONFIDENTIAL11 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.

CONFIDENTIAL12  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.

CONFIDENTIAL13 A shows 9 pound. 16 B shows 1 pound. C shows 3 pounds. 4 1 D shows 1 pounds. 2 2 E shows 1 pounds F shows 5 pounds. 8 3

CONFIDENTIAL14 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.

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CONFIDENTIAL17 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.

CONFIDENTIAL18 5)What is the smallest unit to measure the weight?

CONFIDENTIAL19 6)What is the largest unit to measure the capacity?

CONFIDENTIAL20 Write or = : 7 ) 15 ounces (oz) 1 pound (lb) 8) 3,000 pounds (lb) 1 ton (T)

CONFIDENTIAL21 9) To change to a larger unit, _______. 10) To change to a smaller unit, _______. Fill in the blanks:

CONFIDENTIAL22 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).

CONFIDENTIAL23 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.

CONFIDENTIAL24 Review Reading 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.

CONFIDENTIAL25 Review A shows 9 pound. 16 B shows 1 pound. C shows 3 pounds. 4 1 D shows 1 pounds. 2 2 E shows 1 pounds F shows 5 pounds. 8 3

CONFIDENTIAL26 You have done a nice job. See you in the next session.