Factor Label Method AUGUST 24 I Bell Work

Factor Label Method

AUGUST 24 I. Bell Work II. Metric Mania III. Factor Label Method IV. FLM Practice V. HW - Conversions ESSENTIAL QUESTION: How can I use the factor label method in my life? BELL WORK: 1) Identify the three equipment on the next slide. 2) What is it (quantity) does each equipment measure? 3) How do you use the equipment? Drawing or written direction is accepted.

Review: Triple Beam Balance mass Graduated Cylinder grams Volume of a Liquid Meter stick Length/distance meters liters

Metric Mania: › Finish up lab. › Make sure you are able to use each equipment accurately. › Make sure you know what units are used for each equipment and what is being measured. › Make sure you know how to appropriately get the equipment and to return it. › You have 10 minutes (or 2 songs) to finish up the lab.

Objectives: › I can explain and describe what is SI. › I can explain and describe what are the SI units for length, volume, and mass. › I can explain and describe which measurements are used for large and small quantities. › I can use the factor label method (FLM) to convert from larger to smaller quantities and vice versa.

Review: Talk with your classmate › Which is bigger? – km cm › Which is bigger? –g mg › Which is bigger? – dag dg

Factor Label Method: › A systematic way of converting from one unit to another unit (not just for metric system) › It’s always in this format:

Factor Label Method: › With the person next to you, solve the following problem: 1. You have 24 persons on your baseball team. You need to order pizza and want to have 2 slices of pizza for each person. You know that a large pizza has 8 slices in it. How many boxes of pizza should you order?

Before We Get Started we Need Metric Prefixes or Conversion Factors: Prefix Name mega kilo hecto deka Unit deci centi milli micro nano Symbol M k h da m, L, g d c m µ n Amount million thousand hundred ten one tenth hundredth thousandth millionth billionth Actual Number 1, 000 10 1 0. 01 0. 000001 0. 00001

Factor Label Method: › Now let’s try actual metric measurements 1. 2000 meters = ______ cm

Factor Label Method: › Here’s another one… 1. 20 kilograms = ______ grams

Factor Label Method: › And another one… 1. 30 milliliters = ______ liters

Factor Label Method: › And another one… 1. 30 milliliters = ______ centiliters

Factor Label Method: › Now let’s try some more 1. 20 kilometers = ______ cm

Factor Label Method: › Now let’s try some more 1. 20 hectogram = ______ centigram