Everyday MathGrade 4 – Lesson 4.9
Measuring in Millimeters
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Lesson Components:Part 1: Math Boxes 4.9 Page 106Part 2: PowerPoint LessonPart 3: Math Journal Pages 103-105Part 4: Additional Sheets
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Math Boxes Lesson 4.9Page 106
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Math Box 1:
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Math Box 2:
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Math Box 3:
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Math Box 4:
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Math Box 5:
Everyday MathGrade 4 – Lesson 4.9
Measuring in Millimeters
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PART 1: METRIC SYSTEM
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Metric System Units
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THE METER
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In the metric system, the meter is the unit we use to measure distance, height, or length.
Meter
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A meter is about the same width as your arms spread out wide.
Meter
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A meter is used to measure medium sized things….like the height of a door.
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What are some other things that could be measured in meters?
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THE CENTIMETER
& MILLIMETER
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Centimeters and millimeters are used to measure small things like Tim’s hair.
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A centimeter is made up of 10 millimeters. There are 100 centimeters in a meter.
Centimeter
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A centimeter is about the same width as your pinkie finger.
Centimeter
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What are some things that could be measured in centimeters?
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A millimeter is the smallest unit of measure in the metric system. There are 10 millimeters in 1 centimeter and 1,000 millimeters in a meter.
Millimeter
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A millimeter is about the same thickness as a dime .
Millimeter
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What might we measure in millimeters?
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THE KILOMETER
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Kilometers are used to measure larger things like the distance to the beach.
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A kilometer is made up of 1,000 meters.
Kilometers
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What are some things that could be measured in kilometers?
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PART 2: MEASURING WITH CENTIMETERS
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Centimeters
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Centimeters
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Centimeters
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Centimeters
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Centimeters
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Centimeters
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PART 3: MEASURING WITH MILLIMETERS
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Millimeters
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Millimeters
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Millimeters
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Millimeters
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Millimeters
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Millimeters
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Millimeters
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YOU TRY!
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Millimeters
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___Answer =
Millimeters
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Millimeters
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Millimeters
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Millimeters
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Millimeters
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LET’S ESTIMATE!
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Millimeters
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Millimeters
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Millimeters
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Millimeters
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Does this make sense?
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