Presentation on theme: "New Prefixes for the Dictionary"— Presentation transcript:
1New Prefixes for the Dictionary MeaningExampleMilli1/1000millimeterCenti1/100CentimeterDeci1/10DecimeterDeka10xDekameterHeka100xHekameterKilo1000xKilometer
2Learning TargetI will collaborate with my table and class and learn how to use the chart to convert within the metric system.
3Class Challenge Everyone scores 3 out of 3 – It never has happened before.Doesn’t mean it can’t happen now!
4You need scratch paper today: There are 1000 meters in a kilometer. How many meters are there in 6.62 kilometers?There are 1/1000 meters in a millimeter. How many millimeters are there in 3 kilometers?
6Announcements:1) Video homework will be accepted late, but looks bad on progress report.2) Look for a project over break! The more you share with me, the better your chances.3) Quiz retakes after school Thursday, 10/17. Meeting today – can’t do it.
8What are three things we can measure? #1 – Weight (Mass)We use “grams”#2 – VolumeWe use “liters.”#3 – DistanceWe use “meters.”
9Converting within the Metric System Its as easy as moving the decimal point.
10The Table is the Key 7 Kilo 6 Heka 5 Deka 4 3 Deci 2 Centi 1 Milli 1000x100x10x1x1/10x1/100x1/KHDaNo PrefixDCM
11For Example: I want to convert 3 KILOMETERS to MILIMETERS. Grab your table and let’s begin.
12Answer the Following: Which number is kilo? Which number is mili? What is the difference between the two?7 (kilo) – 1 (mili) = 6WE WILL MOVE THE DECIMAL 6 PLACES!(But, in which direction?)
13If we move between Kilo and Mili on the table….. In which direction are we moving?Right or left?RIGHTWe will move the decimal SIX places to the RIGHT.
14Summary3 Kilometers =milimetersA very long road!
15The instructions written on your chart 1) Write down the number for the first prefix2) Write down the number for the second prefix3) Subtract the two numbers4) Determine which direction you move on the table between the two5) Move the decimal
16Another Problem I want to convert 3 dl to 3 hl What is the first number?What is the last number?What is the difference between the two?
19WARNINGSIf there is NO PREFIX, this means we are talking about #4 on the table.If there is one letter, that means that we are talking about #4 on the table.One M ALONE stands for Meter – not Mili!When moving to the left, if there are no more numbers, you need to include a zero for each space you need to move.
20Practice Problems 50 meters = ???? Km 2.3 mL = ???? cL .001 hg = ???? g