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

Counting in Metric Worksheet

What do the USA, Liberia, and Myanmar have in common? Image retrieved from Gizmodo.com No Metric System!

When do we use metric system in the USA? All images from google images

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!

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

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

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

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

Mars Probe Crash

Pre and Post Assessment

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

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

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

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 2 3

0% 0%0%

1. Metric (meters, liters, grams)

2. English (feet, pounds, inches, etc)

3. Still not sure!

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!

1030

200Questions so far?

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!

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

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

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

Measuring Length

1.3 cm

13.8 cm

13 mm

138 mm