2 WHY DO WE USE THE METRIC SYSTEM? Almost all other countries are using the metric systemOther countries’ companies are refusing to buy products from the U.S. if not labeled in metric unitsMathmeticians need a universal way to communicate data (SI Units)
3 A meter is about the same length as a yard APPROXIMATE CONVERSIONS BETWEEN METRIC & US LENGTH UNITSA meter is about the same length as a yardA meter is about three feet longA decimeter is about four inches longAn inch is about 25 millimetersA foot contains about 30 centimetersA foot contains about 3 decimeters
4 WHAT DOES THE METRIC SYSTEM MEASURE? The gram measures mass or how much something weighsThe liter measures volume which is used when measuring liquidsThe meter measures the length of an object or the distance from place to place
5 THE METRIC CONVERSION CHART (LADDER METHOD) To convert to a larger unit, move decimal point to the LEFT or divide.To convert to a smaller unit, move decimal point to the RIGHT or multiply.Kilo1000Hecto100Deca10Base UnitsmetergramLiter1Deci0.1Centi0.01Milli0.001
6 TRY THIS USING THE LADDER METHOD 1000 mg = ______ gStep 1: Determine if you are going to go up or down the ladder.Step 2: Determine how many steps there are from milligrams to grams.Step 3: Move the decimal point the amount of places that was determined in steps 1 & 2.
7 Step 1: Smaller to larger we DIVIDE Step 2: There are 3 places between miligrams and gramsStep 3: Move the decimal 3 places to the left1000mg = 1 g
8 Now Try These: 6578 kg=__________g 330mm=___________cm 5010 dl=___________ml250cm=____________mKilo1000Hecto100Deca10Base UnitsmetergramLiter1Deci0.1Centi0.01Milli0.001
9 Complete the Metric Mania Handout with a partner in class Complete the metric conversion handout for homework