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What is the scale factor of yards to inches?

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Students will be able to compare, contrast, and convert units of measure between different measurement systems (US customary or metric SI), dimensions, and derived units to solve problems.

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Students will: Identify the appropriate unit of measure for the given object Identify units (length, mass or capacity/volume) Identify what is Customary and Metric Define key terms.

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Students will: Use dimensional analysis to solve problems within same measurement system (Metric or Customary) Convert between Metric and Customary

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Use dimensional analysis between systems to solve real-world problems Create a word problem involving dimensional analysis between two systems

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Metric system US customary system Volume Mass Unit of measure Conversion factor

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US customary and Metric systems

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The weight of a car? Length of a piece of paper? How much water in a small pool?

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Conversion factor Cups to pints Ounces to pounds

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1. find the conversion factor between the two you are converting 2. Create a proportion between the conversion factor and given information 3. Cross, cross, divide (sing the song if needed)

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Convert 30 inches to feet Convert 1500 lbs. to tons

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Sometimes you will have to do more than one conversion. Example it you are converting from inches to miles. Just do one conversion at a time until you reach the correct ending unit

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GramsMeasurement of mass or weight LiterMeasurement of volume or capacity MeterMeasurement of length

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The weight of a car? Length of a piece of paper? How much water in a small pool?

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Because the metric system is based on units of ten, we do not need scale factors. We only need to know how many times we will be diving or multiplying by ten

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Example if we are converting between Kilo- and Deca-, that is two steps. two steps of 10 equal 100, so we multiply 100

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Covert 4 kilometers to meters That is 3 jumps Each jump is 10, so three would be 1000 10 x 10 x 10 = 1000 4 x 1000= 4000

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Convert 20 milligrams to decigrams Convert 34 hectograms to grams

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Describe in words how you would convert inches to miles

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