Download - September 13 & 16
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Homework Due
Read and Study (‘R & S’) 1.1-1.5. Complete the handout Also complete the Student Survey (not graded)***Please put these in the IN BOX***
Tonight’s HW
Watch this YouTube video (not graded) on Metric System – it’s 4 mins.; the URL is LINKED on my website. There’s 1 error…can you find it?: http://tinyurl.com/RhsMetric OR http://www.youtube.com/watch?v=MekxJse2vgs
Do Now Handout on my desk – complete ONLY the FRONT (Says ‘Do Now’) Please take your clicker and set aside for now!
September 13 & 16
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Counting in Metric Worksheet
What do the USA, Liberia, and Myanmar have in common? Image retrieved from Gizmodo.com No Metric System!
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When do we use metric system in the USA? All images from google images
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CHEAT SHEETThis will make your life easier…
But you can’t always use it!
And when you take Chem and Bio, you DEFINITELY can’t use it!
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KILO1000Units
HECTO100
UnitsDEKA
10Units
DECI0.1
UnitCENTI
0.01Unit
MILLI0.001Unit
MetersLitersGrams
Ladder Method
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
12
3
How many jumps does it take?
Starting Point Ending Point
4.1
__.2
__.3
__. = 4000 m
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KILO1000Units
HECTO100
UnitsDEKA
10Units
DECI0.1
UnitCENTI
0.01Unit
MILLI0.001Unit
MetersLitersGrams
KingHenry
DiedBelly-
UpDrinking
ChocolateMilk
It would be a good idea to put the following acronym in the box at the
bottom of your page. (You will need to know metric conversions for tests):
Extra Notes
k hD
dc m
m L g
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Practice Problems #1-5 Flip your Do Now’s Over Solve
1) 20007 mg = ____________g
2) 5 L = _______ mL
3)16 cm = _______ mm
4)104.2 km = _____________m
5)19.8 g =__________ kg
20.007
5000160
104,2000.0198 or .0198
Move 3 spaces left
Move 3 spaces right
Move 1 space right
Move 3 spaces right
Move 3 spaces left
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MORE!
1) 1.73 cg= ______________________hg
2) 0.0019 mL = ___________________ kL 3) 0.0037 kg = __________________ dg
How else can you write #2? Scientific Notation! Try it!
.000173.0000000019
37
1.9 x 10-9
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Mars Probe Crash
Pre and Post Assessment
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PRE ASSESSMENT: What form of measurement system are you more used to?
1 2 3 4
0% 0%0%0%
1. Metric (meters, liters, grams)
2. English (feet, pounds, inches, etc)
3. I am equally used to both of these systems
4. I am used to a different system
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PRE ASSESSMENT: Imagine you know the Metric and English systems equally well. Which do you
think is a better system to use?
1 2 3
0% 0%0%
1. Metric (meters, liters, grams)
2. English (feet, pounds, inches, etc)
3. Not sure – I need to learn more before deciding
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PRE ASSESSMENT: Do you think the entire world should be obligated to use one, universal,
worldwide system of measurement (EITHER metric, OR English, etc)?
1 2 3
0% 0%0%
1. Yes2. No3. Not quite sure
– need to learn more before making a decision
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As a class, we will read the articles…
• Expect to stop during the articles for comments, questions, and feedback.
• Feel free to highlight, take notes, etc.• SHARE what works best for you when you are
reading a text for understanding • These are yours to keep – they are NOT graded!• You may bullet point for the questions (do not
have to use full sentences)
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Debate (pending time) • 2 groups – pro/con for the worldwide use of the metric system• _____ minutes to discuss as a group and use smart phones for
additional research • Each individual has the opportunity to state 1 reason for their
decision, followed by evidence based reasoning. • Once an individual from one group has spoken, an individual
from the other side will have a chance to rebut (once again, using evidence!)
• You cannot speak again until at least ____ people on YOUR SIDE have spoken
• You may change sides at ANY TIME by walking to the other group.
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POST ASSESSMENT: Imagine you know the Metric and English systems equally well. Which
do you think is a better system to use?
1 2 3
0% 0%0%
1. Metric (meters, liters, grams)
2. English (feet, pounds, inches, etc)
3. Still not sure!
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POST ASSESSMENT: Do you think the entire world should be obligated to use one, universal,
worldwide system of measurement (EITHER metric, OR feet/pounds, etc)?
1 2 3
0% 0%0%
1. Yes2. No3. Still not sure!
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1030
200Questions so far?
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12 1.2
We will complete the first 2 together… It might be easier to complete the cm column BEFORE the mm column.
2237 3.756 5.667 6.775 7.5
2.2
Questions so far?
Now you try!
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Do Not lose this paper! You will need to reference it all year!
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Lesson 1: Length
T. Trimpe 2008 http://sciencespot.net/
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English vs. Metric Units
Left Image: http://webapps.lsa.umich.edu/physics/demolab/controls/imagedemosm.aspx?picid=1167Right Image: http://share.lancealan.com/N800%20ruler.jpg
Which is longer?
A. 1 mile or 1 kilometer
B. 1 yard or 1 meter
C. 1 inch or 1 centimeter
1.6 kilometers
1 mile
1 yard = 0.9444 meters1 inch = 2.54 centimeters
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Metric UnitsThe basic unit of length in the metric system is the meter and is represented by a lowercase m.
Standard: The distance traveled by light in absolute vacuum in 1⁄299,792,458 of a second.Complete each statement with Metric Units
1 Kilometer (km) = 1000 meters (m)
1 Meter = 100 Centimeters (cm)
1 Meter = 1000 Millimeters (mm)
Which is larger?A. 1 meter or 105 centimeters
B. 4 kilometers or 4400 meters
C. 12 centimeters or 102 millimeters
D. 1200 millimeters or 1 meter
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Measuring Length
1.3 cm
13.8 cm
13 mm
138 mm