September 13 & 16
Homework Read and Study (‘R & S’) 1.1-1.5.
Complete the handout
Due
Also complete the Student Survey
(not graded)
***Please put these in the IN BOX***
Tonight’s
Watch this YouTube video (not graded)
HW
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
Do Now
http://www.youtube.com/watch?v=MekxJse2vgs
Handout on my desk – complete
ONLY the FRONT (Says ‘Do Now’)
Please take your clicker and set aside
for now!
Counting in Metric Worksheet
What do the USA, Liberia, and Myanmar have in
common?
Image retrieved from Gizmodo.com
When do we use metric system in the
USA?
All images from google images
CHEAT SHEET
This 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!
Ladder Method
1
2
KILO
1000
Units
HECTO
100
Units
3
DEKA
10
Units
DECI
0.1
Unit
Meters
Liters
Grams
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.
CENTI
0.01
Unit
MILLI
0.001
Unit
4 km = _________ m
Starting Point
Ending Point
How many jumps does it take?
4. __. __. __. = 4000 m
1
2
3
Extra Notes
KILO
1000
Units
HECTO
100
Units
DEKA
10
Units
DECI
0.1
Unit
Meters
Liters
Grams
CENTI
0.01
Unit
MILLI
0.001
Unit
Practice Problems #1-5  Flip your Do Now’s
Over  Solve
1)
20.007
20007 mg = ____________g
5000
160 mm
3)16 cm = _______
104,200
4)104.2 km = _____________m
0.0198 kg
5)19.8 g =__________
or .0198
2) 5 L = _______ mL
MORE!
.000173
.0000000019
0.0019 mL = ___________________ kL
37
0.0037 kg = __________________
dg
1) 1.73 cg= ______________________hg
2)
3)
How else can you write #2?
Scientific Notation! Try it!
1.9 x
-9
10
Mars Probe Crash
Pre and Post Assessment
PRE ASSESSMENT: What form of measurement
system are you more used to?
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
0%
1
0%
2
0%
3
0%
4
PRE ASSESSMENT: Imagine you know the Metric
and English systems equally well. Which do you
think is a better system to use?
1. Metric (meters, liters,
grams)
2. English (feet, pounds,
inches, etc)
3. Not sure – I need to
learn more before
deciding
0%
1
0%
2
0%
3
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. Yes
2. No
3. Not quite sure
– need to learn
more before
making a
decision
0%
1
0%
2
0%
3
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)
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.
POST ASSESSMENT: Imagine you know the
Metric and English systems equally well. Which
do you think is a better system to use?
1. Metric (meters, liters,
grams)
2. English (feet, pounds,
inches, etc)
3. Still not sure!
0%
1
0%
2
0%
3
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. Yes
2. No
3. Still not sure!
0%
1
0%
2
0%
3
Do Not lose
this paper!
You will need
to reference
it all year!
Lesson 1:
Length
T. Trimpe 2008 http://sciencespot.net/
English vs. Metric Units
Which is longer?
A. 1 mile or 1 kilometer
B. 1 yard or 1 meter
1 mile
1.6 kilometers
C. 1 inch or 1 centimeter
1 inch = 2.54 centimeters
1 yard = 0.9444 meters
Left Image: http://webapps.lsa.umich.edu/physics/demolab/controls/imagedemosm.aspx?picid=1167
Right Image: http://share.lancealan.com/N800%20ruler.jpg
Metric Units
The 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
Measuring Length