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Metric Conversion (Metric Steps)

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Metric Conversion (Metric Steps)

1. 1. Metric Stairs How to do Metric Conversions
2. 2. Metric System <ul><li>System of measurement. </li></ul><ul><li>Designed to be easy to use and universal. (built on powers of ten) </li></ul><ul><li>Correct name is the “International System of Units”( or SI for short). </li></ul>
3. 3. Built on a Root <ul><li>Each property of matter has a root word that is the base measurement for that property. </li></ul><ul><li>For example: </li></ul><ul><ul><ul><li>Grams (g) are for mass </li></ul></ul></ul><ul><ul><ul><li>Liters (L) are for volume </li></ul></ul></ul><ul><ul><ul><li>Meters (m) are for distance </li></ul></ul></ul>
4. 4. Add a Prefix <ul><li>To change the value of the root (make it bigger or smaller), you add a prefix </li></ul><ul><li>Smaller </li></ul><ul><ul><li>Milli (m) – 1/1000 of the root (1000 times smaller) </li></ul></ul><ul><ul><li>Centi (c) – 1/100 of the root (100 times smaller) </li></ul></ul><ul><ul><li>Deci (d) – 1/10 of the root (10 times smaller) </li></ul></ul><ul><li>Bigger </li></ul><ul><ul><li>Deka (dk) – 10 times bigger than root </li></ul></ul><ul><ul><li>Hecto (h) – 100 times bigger than root </li></ul></ul><ul><ul><li>Kilo (k) – 1000 times bigger than root. </li></ul></ul>
5. 5. Easy Conversions kilo- hecto- deka- root deci- centi- milli- <ul><li>You can use this simple drawing to convert any metric measurement to another metric measurement. </li></ul><ul><li>The stairs have 7 steps going down left to right </li></ul>
6. 6. How does it work? kilo- hecto- deka- root deci- centi- milli- <ul><li>First, identify the prefixes you are being asked to convert between. </li></ul><ul><ul><li>Example: “Convert 2.345 cm into hectometers” </li></ul></ul><ul><ul><li>cm is centi meters and change is to hecto meters. </li></ul></ul>
7. 7. How does it Work? kilo- hecto- deka- root deci- centi- milli- <ul><li>Next draw out the stairs. </li></ul><ul><li>Third, put a mark on the starting prefix ( centi in our example problem) </li></ul>
8. 8. How does it Work? kilo- hecto- deka- root deci- centi- milli- 1 4 3 2 Left <ul><li>Fourth, “walk” up/down the stairs to the prefix you are converting to ( hecto in our example) </li></ul><ul><li>Count the number of steps you traveled and note direction as either left or right. </li></ul>
9. 9. How Does it Work <ul><li>Now go to the original number ( 2.345 ) and move the decimal point the same direction and number of “steps” as you did on the stairs. </li></ul>2.345 4 spaces left 0.0002345 hm