9 2 Understanding Metric Units of Measure Warm

9 -2 Understanding Metric Units of Measure Warm Up Problem of the Day Lesson Presentation Course 1

9 -2 Understanding Metric Units of Measure Warm Up Multiply the following by 1, 000. 1. 0. 03 30 2. 4. 02 4, 020 Divide the following by 1, 000. 3. 30 Course 1 0. 03 4. 487. 1 0. 4871

9 -2 Understanding Metric Units of Measure Problem of the Day James said he was 5 ft 6 in. tall. His brother’s height is 65 in. Who is the tallest and by how much? James, by 1 in. Course 1

9 -2 Understanding Metric Units of Measure Learn to understand select appropriate metric units of measure. Course 1

9 -2 Understanding Insert Lesson. Metric Title Units Here of Measure Vocabulary metric system Course 1

9 -2 Understanding Metric Units of Measure The metric system of measurement is used almost everywhere in the world. Its advantage over the customary system is that all metric units are related by the decimal system. Metric Units of Length Unit Abbreviation Relation to a Meter Millimeter mm 0. 001 m Thickness of a dime Centimeter cm 0. 01 m Width of a fingernail Decimeter dm 0. 1 m Meter m 1 m Kilometer km 1, 000 m Course 1 Benchmark Width of CD case Width of a single bed Distance around a city block

9 -2 Understanding Metric Units of Measure Additional Example 1: Choosing Appropriate Units of Length What unit of measure provides the best estimate? Justify your answer. A. A ballpoint pen is about 14 _____ long. Think: A ballpoint pen is about 14 times the width of a fingernail. A ballpoint pen is about 14 cm long. B. A football field is about 100 _____ long. Think: A football field is about 100 times the width of a single bed. A football field is about 100 m long. Course 1

9 -2 Understanding Metric Units of Measure Check It Out: Example 1 What unit of measure provides the best estimate? Justify your answer. A. A loaf of bread is about 3 _____ long. Think: A loaf of bread is about 3 times the width of a CD case. A loaf of bread is about 3 dm long. B. An earthworm is about 5 _____ long. Think: A. earthworm is about 5 times the width of a fingernail. An earthworm is about 5 cm long. Course 1

9 -2 Understanding Metric Units of Measure Metric Units of Mass Unit Abbreviation Relation to a Gram Benchmark Milligram mg 0. 001 g Very small insect gram g 1 g Large paper clip Kilogram kg 1, 000 g Course 1 Textbook

9 -2 Understanding Metric Units of Measure Additional Example 2: Choosing Appropriate Units of Mass What unit of measure provides the best estimate? Justify your answer. An orange has a mass of about 600 _____. Think: An orange has a mass of about 600 times the mass of a large paperclip. An orange has a mass of about 600 g. Course 1

9 -2 Understanding Metric Units of Measure Check It Out: Example 2 What unit of measure provides the best estimate? Justify your answer. The Liberty Bell has a mass of about 943 _____. Think: The Liberty Bell has a mass of about 943 times the mass of a textbook. The Liberty Bell has a mass of about 943 kg. Course 1

9 -2 Understanding Metric Units of Measure Metric Units of Capacity Unit Abbreviation Relation to a Liter Milliliter m. L 0. 001 L Liter L 1 L Course 1 Benchmark Drop of water Blender container

9 -2 Understanding Metric Units of Measure Additional Example 3: Choosing Appropriate Units of Capacity What unit of measure provides the best estimate? Justify your answer. An ice cream scoop holds about 100 _____. Think: An ice cream scoop holds the capacity of about 100 times a drop of water. An ice cream scoop holds about 100 m. L. Course 1

9 -2 Understanding Metric Units of Measure Check It Out: Example 3 What unit of measure provides the best estimate? Justify your answer. A large punch bowl holds about 7 _____. Think: A large punch bowl holds the capacity of about 7 times the capacity of a blender container. A large punch bowl holds about 7 L. Course 1

9 -2 Understanding Metric Units of Measure Additional Example 4: Estimating Measurement Measure the length of the line to the nearest meter. 1 m 2 3 4 The line is between 3 and 4 meters. Closer to 4 m than 3 m. The length of the line is about 4 m. Course 1

9 -2 Understanding Metric Units of Measure Check It Out: Example 4 Measure the length of the line to the nearest meter. 1 m 2 3 4 The line is between 1 and 2 meters. Closer to 1 m than 2 m. The length of the line is about 1 m. Course 1

9 -2 Understanding Insert Lesson. Metric Title Units Here of Measure Lesson Quiz Name the most appropriate unit of measure. cm 1. A door knob has a diameter of about 7 _____. g 2. A ballpoint pen weighs about 3 _____. L 3. A gallon of milk is almost 4 _____. 4. Paul estimated the weight of his infant sister to kg t be 5 _____. Course 1