all about measurement

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Information about all about measurement
Education

Published on October 19, 2010

Author: LuwannaAdkisson

Source: authorstream.com

All About Measurement : All About Measurement What do we measure? What units do we use to measure? How do I estimate a measurement? By: Luwanna Adkisson Things we measure… : Things we measure… TIME LENGTH CAPACITY TEMPERATURE VOLUME WEIGHT Slide 3: TIME Time is measured using: -seconds -minutes -hours -days -weeks -months -years Slide 4: There are 60 seconds in a minute. It takes about ONE second to say “Mt. View” There are 60 minutes in an hour. It takes about an hour to dry a load of clothes in an electric dryer. There are 24 hours in a day. An entire day is about from the time you wake up on one day, until the time you wake up the NEXT day. There are 7 days in a week. There are 52 weeks in a year, which is 365 days (52 x 7) Slide 5:  TEMPERATURE Temperature is measured in DEGREES. In America, we use degrees FAHRENHEIT to measure the temperature. Water FREEZES at 32 degrees and BOILS at 212 degrees Fahrenheit. The TOOL we use to measure temperature is called a THERMOMETER. Slide 6: TEMPERATURE In most countries around the world, the metric system is used to measure temperature. The metric system measures the temperature in degrees CELCIUS. It is actually an easier system to use. Water boils at 100° Celcius and freezes at 0° Celcius. 100° 0° Slide 7: In the United States, we generally measure length and distance using the Imperial System, which originated (began) in England in the 1850’s. Standard Units for Measuring LENGTH in this system are the: Inch Foot (12 inches) Yard (3 feet or 36 inches) Mile (5,280 feet or 1,760 yards) LENGTH Slide 8: Metric Length Most of the world uses the metric system to measure length. The Metric System uses millimeters, centimeters, decimeters, meters, and kilometers. 10 millimeters = 1 centimeter 10 centimeters = 1 decimeter 100 centimeters, or 10 decimeters = 1 meter 1000 meters = kilometer (The countries in red are the only countries not using the metric system.) Slide 9: Definition: the amount of 3-dimensional space occupied by an object. The U.S. Customary Units for measuring volume are CUPS, PINTS, QUARTS and GALLONS. 16 ounces = 1 cup 2 cups = 1 pint 2 pints = 1 quart 4 quarts = 1 gallon http://www.linkslearning.org/Kids/1_Math/2_Illustrated_Lessons/6_Weight_and_Capacity/index.html Capacity Slide 10: Metric Capacity The metric system uses milliliters (ml) and liters (l) to measure capacity. Many of you are familiar with metric liters based on buying 2 liter sodas at our local grocery stores and markets. 1 L = 1000 ML USE THESE TIPS TO ESTIMATE CAPACITY: 5 ml is about the capacity of a teaspoon. 1 ml doesn’t fill the spoon! 1l is about the capacity of a large carton of fruit juice Or the water jug to the right. Slide 11: VOLUME Volume is the amount that a container will hold in cubic units. Imperial: cubic inch, cubic foot, cubic yard Metric: cubic centimeter, cubic meter Slide 12: Weight Again, in the United States, we measure weight differently than the rest of the world. We measure weight using ounces, pounds, and tons. Examples: A serving of dry cereal weighs about one ounce. A loaf of bread is about a pound. A compact car weighs about a ton. Slide 13: Metric Weight The metric system for measuring weight uses grams and kilograms. 1 gram is about the weight of a paperclip. 1000 grams = 1 kilogram A dictionary weight about a kilogram 61 kg is about the same as 135 lb woman Estimating a Linear Measurement : Estimating a Linear Measurement An ESTIMATE is a good guess that uses strategies to get close to the exact answer. Some strategies to help you estimate the length of objects: thumb - from the knuckle to the tip is about an inch. The distance between two knuckles on a person's finger might be about an inch. A sheet of paper is almost a foot long. A doorknob is about a yard from the floor. Estimating Weight : Estimating Weight One key to weight estimation is comparing the item to a familiar item which you know or are given the weight. Example: If one is 6 ounces, about how much would be? Another key is to determine the reasonableness of an answer. If a weighs 70 pounds, would it make sense for an to weigh 100 pounds? Now Let’s Practice… : Now Let’s Practice…

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