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The Metric System

The metric system is a universal measurement system that simplifies calculations by using base units such as meters for length, liters for volume, and grams for mass. This guide introduces the metric prefixes—kilo, hecto, deka, deci, centi, and milli—and offers a mnemonic device, "King Hector Died By Drinking Chocolate Milk," to help remember their order. Practice converting between units using the "Metric Staircase" method for easy movement along the decimal places. Strengthen your understanding of conversions across different measuring systems with practical examples.

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The Metric System

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  1. The Metric System No Fractions Necessary!

  2. Why Do We Need It? C:\Documents and Settings\burke.wendi\Desktop\American Chopper vs The Metric System [www.keepvid.com].mp4

  3. Base Units/Suffixes (symbols) The base units in the metric system are determined by what you’re measuring. Length=meter (m) Volume=liter (L) Mass=gram (g) These are also your metric suffixes.

  4. Prefixes (symbols) & value • Kilo (k)=1,000. • Hecto (h)=100. • Deka (da)=10. • Base (m, L, or g)=1. • Deci (d)=.1 • Centi (c)=.01 • Milli (m)=.001 Need a way to remember the order? King Hector Died By Drinking Chocolate Milk

  5. Using the “Metric Staircase” • Think of the prefixes like a set of stairs Kilo *As you move down the stairs Hecto you move the decimal one Deka place to the right for every step. Base *As you move up the Deci stairs you move the decimal Centi one place to the left for every Milli step.

  6. Units • Combine your prefix and your suffix. • Example: • mg=milligram • km=kilometer • mL=milliliter • Has anyone ever run the hectometer dash?

  7. Practice Time! • kg=________?__________ • mm=_______?__________ • dL=________?__________ • dekagram=_________?________ • centimeter=________?_________ • milligram=_________?_________

  8. It’s Easy To Convert • C:\Documents and Settings\burke.wendi\Desktop\Converting units.flv

  9. Practice Conversions • Do the following conversions using the “Metric Staircase”-Just count how many steps you take and then move the decimal whichever way you went on the staircase. • 39cm=____?____m • .82kg=____?____g • 500mL=_____?____L The “Metric Staircase” can only be used when converting within the metric system!

  10. Practice Conversions • These are a tad more difficult because you are converting into a different measuring system. You have to convert the numbers like on the video. • 8cm=____?____in • 1821mi=____?____km

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