6.9The student will make ballpark comparisons between measurements in the U.S.

Customary System of measurement and measurements in the metric system. a) length — part of an inch (1/2, 1/4, and 1/8), inches, feet, yards, miles,

millimeters, centimeters, meters, and kilometers; b) weight/mass — ounces, pounds, tons, grams, and kilograms;

c) liquid volume — cups, pints, quarts, gallons, milliliters, and liters; and d) area — square units. *

Ballpark Conversions

Inch= about 2.5 centimeters or 25 millimeters Yard= almost a meter (meter is about 40 inches, a yard is 36 inches)Mile= about 1.5 kilometers (miles are about 1.5 times longer than kilometers)Ounce= about 28 grams Quart= about the same as a literPound= about 2 kilograms (if you weigh 100 pounds, then you weigh 50 kilograms)

Copy this chart on your cover page

6.9 Vocabulary (handout given to students)Capacity - A measure of the ability to receive, hold, or absorb volume.Length - A measure used as a unit to estimate distances.Weight - Weight is determined by the pull of gravity on the mass of an object. The weight of an object changes dependent on the gravitational pull at its location. Mass - Mass is the amount of matter in an object. The mass of an object remains the same regardless of its location. In everyday life, most people are actually interested in determining an object’s mass, although they use the term weight, as shown by the questions: “How much does it weigh?” versus “What is its mass?”Volume –The amount of space that a three dimensional figure contains. Volume is expressed in cubic units, it tells you the number of cubes of a given size are used to fill the figure.Area – The product of the length and the width (A = l w). The area of a triangle is one half of the measure of the base times the height: A = bh, or A = bh ÷ 2.Square Unit – Units used when measuring the area of a two-dimensional figure.

U.S. Customary System –System of measurements using inch, foot, yard, mile, fluid ounce, cup, pint, quart, gallon, dry ounce, pound, and ton.Inch –measurement, about the width of a quarterFoot –used to measure length, equal to 12 inches.Yard –3 feet, approximate distance from nose to fingertip for the average adultMile –used to measure distance, equal to 1,760 yardsOunce (oz) – measurement for liquids or solids; (p. 470) fluid ounce (fl oz), about 2 tablespoons of water; dry ounce (oz), about the weight of a pencilPound (lb) –used to measure mass, 1 pound = 16 ounces, 1 package of notebook paperTon (T) –solid measurement, 1 ton = 2,000 pounds, average passenger car Cup (c) –liquid measurement, 1 cup = 8 fluid ounces, coffee cupPint (pt) –liquid measurement, 1 pint = 2 cups, small ice cream containerQuart (qt) –liquid measurement, 1 quart = 2 pints, small plastic jug of milkGallon (gal) –liquid measurement, 1 gallon = 4 quarts, large plastic jug of milk

Metric System –A decimal system of units based on the meter as a unit length, the gram as a unit mass, and the liter as a unit of volume.Meter (m) –basic unit of length in the metric measurement system, equivalent to 39.37 inches or just more than 3 feet.Centimeter (cm) –metric measurement, 2.5 centimeters = to 1 inch, half the width of a pennyKilometer (km) –metric measurement for distances, 6.2 km = to 1 mile, six city blocksMillimeter (mm) –length measurement, 25 millimeters = 1 inch, thickness of a dimeLiter (L) –liquid metric measure, 1 liter = 1 quart, 1 small pitcherMilliliter (ml) –liquid metric measurement, 1 milliliter = 0.03 fl oz, an eyedropperGram (g) – metric measurement for solids, a paper clipKilogram (kg) –solid metric measure, 1 kilograms = 2 pounds, six medium applesMilligram (mg) –A metric unit of mass. One Milligram equals one-thousandth of a gram. A grain of sandstandard unit The measurement of the mass, length, or volume of an object using either the Customary System or the Metric System

nonstandard unit Used to estimate the mass, length, or volume of an object using a comparative unit temperature water freezes 0° C and 32°F temperature water boils 100°C and 212°F

normal body temperature About 37°C and 98°F

Length Inch Foot-12 inches Yard- 3 Feet /36 inches

Mile- 1760 yards /5,280 feetWeight/massOunce (oz) Pound (lb) 16 ounces Ton- 2,000 lbs

CapacityCup -8 oz Pint-2 cups - 16 oz Quart- 2 pints Gallon- 4 quarts

6.9 U.S. Customary Examples (handout given to students) Graphic Organizers

lb=16 oz T2OOO N

YFoot

Foot

Foot12 in 12 in

12 in

6.9 Metric Handout given to students Graphic Organizer

Length-meter

Weight/mass-Gram

Capacity-Liter

A millimeter is about the thickness of a plastic id card

A fingernail is about one centimeter wide. guitar is about 1 meter

travels would be measured using kilometers.

Here is a milliliter of milk in a teaspoon.

Liter 2 liter

A dictionary has a mass of about one kilogram.

A paperclip weighs about 1 gram.

King Henry Died Drinking Chocolate Milk

6.9 Non-Standard (handout given to students)Sometimes you will be asked to measure with something that is not a ruler, for example, a crayon, a pencil, your hand, and so on. You should use the

line tool on computer tests or paper on paper tests to make your own ruler to measure with. Here are some examples.

How many lady bugs are the same height as the flower?

Make your own ruler the same height as me!

Ladybug ruler

CLOZE ACTIVITY (handout given to students to complete)Fill in the missing information on your paper. -1 inch is about 2.5 centimeters. – 1 foot is about 30 centimeters. – 1 meter is a little longer than a yard, or about 40 inches. – 1 mile is slightly farther than 1.5 kilometers. – 1 kilometer is slightly farther than half a mile. – 1 ounce is about 28 grams. – 1 nickel has the mass of about 5 grams. – 1 kilogram is a little more than 2 pounds. – 1 quart is a little less than 1 liter. – 1 liter is a little more than 1 quart. – Water freezes at 0°C and 32°F. – Water boils at 100°C and 212°F. – Normal body temperature is about 37°C and 98°F. – Room temperature is about 20°C and 70°F.