4 How many jumps does it take? Ladder Method123KILO 1000 UnitsHECTO 100 UnitsDEKA 10 UnitsDECI 0.1 UnitMeters Liters GramsCENTI 0.01 UnitMILLI UnitHow do you use the “ladder” method?1st – Determine your starting point.2nd – Count the “jumps” to your ending point.3rd – Move the decimal the same number of jumps in the same direction.4 km = _________ mStarting PointEnding PointHow many jumps does it take?4.1__.2__.3__.= 4000 m
5 Conversion Practice Try these conversions using the ladder method. 1000 mg = _______ g 1 L = _______ mL 160 cm = _______ mm14 km = _______ m 109 g = _______ kg 250 m = _______ kmCompare using <, >, or =.56 cm m 7 g mg
6 Metric Conversion Challenge Write the correct abbreviation for each metric unit.1) Kilogram _____ 4) Milliliter _____ 7) Kilometer _____2) Meter _____ 5) Millimeter _____ 8) Centimeter _____3) Gram _____ 6) Liter _____ 9) Milligram _____Try these conversions, using the ladder method.10) 2000 mg = _______ g 15) 5 L = _______ mL 20) 16 cm = _______ mm11) 104 km = _______ m 16) 198 g = _______ kg 21) 2500 m = _______ km12) 480 cm = _____ m 17) 75 mL = _____ L 22) 65 g = _____ mg13) 5.6 kg = _____ g 18) 50 cm = _____ m 23) 6.3 cm = _____ mm14) 8 mm = _____ cm 19) 5.6 m = _____ cm 24) 120 mg = _____ g
7 Compare using <, >, or =. 25) 63 cm m 27) 5 g mg 29) 1,500 mL L26) 536 cm dm 28) 43 mg g 30) 3.6 m cm
8 Why it matters & How We Determine Accuracy & Precision Accuracy and PrecisionWhy it matters & How We Determine Accuracy & Precision
9 By selecting the “right” piece of equipment you will reduce error by measurement in your experimental resultsThe “right” equipment depends on the quantity you are measuring and the amount of uncertainty associated with that equipment.2 factors should be taken into account when collecting data...
10 AccuracyDraw Me!Accuracy is how close the measurement is to the true or actual valueIf you are asked to measure a particular value you want to measure as closely as possible to that quantity
11 PrecisionDraw Me!Precision is the exactness and reproducibility of the measurementThe same quantity measured the same way will (should) produce values that closely agree with each other
12 Good Scientists Want Both! In order to collect the best data that we can we want to be both precise and accurate!Draw Me!
13 Sample Size & Multiple Trials Performing multiple trials and using a large sample size will reduce the amount of random error associated with your measurements.By looking at your data, you can tell if your methods are precise (repeatable) if your trials all agree with each otherBy decreasing the amount of random error, you are getting closer to the actual value (hopefully!)
14 FRONT OF ROOM WHAT IS YOUR COLOR? DOOR E3F2D3E2F1D2D1E1E4F4F3WHAT IS YOUR COLOR?C1B2A3Before 1st Transition - Small Group Outlining of 1st selected reading. Short discussion before transition of content and vocabulary words.C4B1A2C3C2B4B3A1A4BACK OF ROOM
15 MOVE TO YOUR COLOR GROUP FRONT OF ROOMDOORMOVE TO YOUR COLOR GROUPBefore 1st Transition - Small Group Outlining of 1st selected reading. Short discussion before transition of content and vocabulary words.BACK OF ROOM
16 MOVE TO YOUR COLOR GROUP FRONT OF ROOMDOORMass Of ObjectsLength of ObjectsCount Your DropsBefore 1st Transition - Small Group Outlining of 1st selected reading. Short discussion before transition of content and vocabulary words.QuestionsVolume of Solid ObjectsMOVE TO YOUR COLOR GROUPBACK OF ROOM