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Friday, August 23rd Please complete the warm up 1. 8 miles = ____________yards 2. 8.5 cups=__________gallons HOMEWORK QUIZ Use your homework! After each question, the title of the homework assignment and the number of the problem it correlates too is listed WHAT DID BRAD PITT DO How many cups are in 5 pints? 1cup 5 p int s 4 p int s x 20 p int s WRONG? METRIC CONVERSION How to convert within the metric system © Copyright 2003 - 2004. M. J. Krech. All rights reserved. THE METRIC SYSTEM is based on sets of 10 1 x 10 = 10 10 X 10 = 100 10 x 100 = 1,000 The Metric System Is used by scientists all over the world! NAMING THE METRIC UNITS Meter units measure Length Gram units measure mass or weight Liter units measure volume or capacity. CONVERTING METRIC Friends this is going to be SOOOOOOOOOOOOOOOO Easy!!!!!! HERE’S THE GIST OF IT……. To convert from a smaller unit to a larger unit (going to the left) divide by 10 for each step. (Move the decimal one time to the left for each box) Ex: 4 millimeters= 0.4 centimeters KILO- HECT Kilograms O(kg) Kiloliters (kl) Kilometers (km) *Not commonly used Hectograms Hectoliters Hectometers DEKA- UNIT Deci- Centi- Milli- *Not commonly used Centigrams Milligrams Centiliters Milliliters Centimeters millimeters Deckagrams Deckaliters Deckameter s Grams (g) Liter (l) Meter (m) Decigrams Deciliters decimeters To convert from a larger unit to a smaller unit (going to the right ) multiply by 10 for each box (Move the decimal one time to the right for each step. Ex: 25 kilograms = 25000 grams HOW IT WORKS! DO YOU REMEMBER… King Henry? DID YOU ALSO KNOW? King Henry Doesn’t Usually Drink Chocolate Milk Memorize this! YOU MUST ALSO KNOW… …how to convert within the Metric System. We’ll make a handy, dandy device every time we convert! U: UNITS m l g Write the units in the middle under the “U”. REMEMBER THE UNITS! M: L: G: LET’S ADD THE METER LINE: km hm dam m dm cm mm LET’S ADD THE LITER LINE: km kL hm hL dam m dm cm daL L dL cL Deca can also be dk or da mm mL LET’S ADD THE GRAM LINE: km kL kg hm dam m dm cm hL hg daL dag L g dL dg cL cg mm mL mg LET’S ADD THE GRAM LINE: k h d U d c m km kl kg hm hl hg dam m dal l dag g dm dl dg cm cl cg mm ml mg METRIC RECIPE 1. Look at the problem. Look at the unit that has a number. On the device put your pencil on that unit. 2. Move to new unit, circle it counting jumps and noticing the direction of the jump. 3. Move decimal in original number the same # of spaces and in the same direction. ONE LAST CAUTION: Be careful NOT to count the spot you start from, where you put your pencil point. Only count the jumps! EXAMPLE #1: Look at the problem. 56 cm = _____ mm (1) Look at the unit that has a number. 56 cm On the device put your pencil on that unit. k h km hm d U dam m d dm c cm m mm EXAMPLE #1: 2. Move to new unit, counting jumps and noticing the direction of the jump! k h d U d km hm dam m dm c cm One jump to the right! m mm EXAMPLE #1: 3. Move decimal in original number the same # of spaces and in the same direction. 56 cm = _____ mm 56.0. One jump to the right! Move decimal one jump to the right. Add a zero as a placeholder. EXAMPLE #1: 56 cm = _____ mm 56cm = 560 mm EXAMPLE #2: Look at the problem. 7.25 L = ____ kL Look at the unit that has a number. 7.25 L On the device put your pencil on that unit. (1) k h d U d c kl hl dal L dl cl m ml EXAMPLE #2: 2. Move to new unit, counting jumps and noticing the direction of the jump! k h d kl hl dal U d c L dl cl m ml Three jumps to the left! EXAMPLE #2: (3) Move decimal in original number the same # of spaces and in the same direction. 7.25 L = ____ kL .007.25 Three jumps to the left! Move decimal to the left three jumps. Add two zeros as placeholders. EXAMPLE #2: 7.25 L = ____ kL 7.25 L = .00725 kL EXAMPLES #3-7: (3) 35 mm = ____ cm (4) 14,443 L = ____ kL (5) 0.00056 kg = ____ g (6)35.4 L = ____ mL (7)16 mm = ____ km COMPARE AND CONTRAST How many minutes in 7 days? SECONDS, MINUTES, HOURS, DAYS, WEEKS, MONTHS, YEARS 1 minute = 60 seconds 1 hour = 60 minutes 1 day = 24 hours 1 week = 7 days 1 year = 12 months/ 52 weeks/365 days WARNING This involves Multiplying more than one fraction! The big idea=cancel out your label! STEPS Make a plan of the conversions you will need Example: day-hour-min-sec 1. First number/fraction is the number they give you 1. 2. Place label you want to cancel in OPPOSITE location LET’S TRY TOGETHER…………. 1. How many seconds are there in a day? 1 day 24ℎ 60 6 24∙60∙60 ∙ ∙ ∙ = = 86,400 1 1 1 ℎ 1 1 sec/day 2. How many minutes are in 10 days? 10 day 24ℎ 60 10∙24∙60 ∙ ∙ = = 14,400 min in 10 1 1 1 ℎ 1 days 3.How many hours are in 64,800 sec? 64,8 0 0 1 1 ℎ 64800 64,8 0 0 ∙ ∙ = = = 18 hours 1 60 60 60∙60 3600 YOU 4. How many minutes in 7 days? Answer: 10,080 min TRY 5. How many weeks in 20,160 minutes? Answer: 2 weeks THINK, PAIR, SHARE 3-2-1 SUMMARY 3 things that I learned today are: 2 things that I really liked about this unit is: 1 thing I still don’t understand or need more practice on is: