1. *Trivia- how many countries in the world DON’T use the metric system??
T. Trimpe

2. Metrics= All based on factor of 10!
King Henry Doesn't [Usually] Drink Chocolate Milk
kilo-   hecto-   deka-  [base unit] deci-   centi-  milli-

3. 3 Main Categories of Measurement
What Are You Measuring?
Base Unit
Length
(or height or width)
Meter
Mass
Gram
Volume
Liter

4. How many jumps does it take?
Ladder Method 1 2 3
KILO 1000 Units
HECTO 100 Units
DEKA 10 Units
deci 0.1 Unit
Meters Liters Grams
centi 0.01 Unit
milli Unit
How 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 = _________ m
Starting Point
Ending Point
How 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 = _______ mm
14 km = _______ m 109 g = _______ kg 250 m = _______ km
Compare using <, >, or =.
56 cm m 7 g mg

6. Always include the correct unit! 7g 1,898 km 33 L
*No NAKED Numbers!!
Always include the correct unit! 7g
1,898 km
33 L
*Point deductions if you forget 

7. PRACTICE makes PROGRESS
Work on 4L- you may quietly check your answers with your seat partner when finished.
Then, come up to the front table and pick up your HW. Start working on it!