THE POWER OF NANOTHE POWER OF NANO

Created by Carrie PersingCreated by Carrie Persing

MathScience Innovation CenterMathScience Innovation Center

20082008

Using Student RespondersUsing Student Responders

To respond to a To respond to a question:question:

Wait for polling Wait for polling to be open.to be open.

Select your Select your response. response.

Look at your $10,000. How many one Look at your $10,000. How many one thousand dollar bills would it take to thousand dollar bills would it take to

make $10,000?make $10,000?

1010

00 100 50

71%

5%0%

24%

1.1. 1010

2.2. 1,000 1,000

3.3. 100 100

4.4. 5050

How many hundred dollar bills would it take How many hundred dollar bills would it take to make $10,000?to make $10,000?

10 100

1000

5000

10%

0%

20%

70%1.1. 10 10

2.2. 100100

3.3. 1,0001,000

4.4. 5,0005,000

How many ten dollar bills would it take to How many ten dollar bills would it take to make $10,000?make $10,000?

10 500

1000

5000

0% 0%

95%

5%

1.1. 1010

2.2. 500500

3.3. 1,0001,000

4.4. 5,0005,000

How many one dollar bills would it take to How many one dollar bills would it take to make $10,000?make $10,000?

500

1000

1100

1000

0

0%

100%

0%0%

1.1. 500500

2.2. 1,0001,000

3.3. 1,1001,100

4.4. 10,00010,000

Let’s make it a little harder! How many Let’s make it a little harder! How many dimes would it take to make $10,000?dimes would it take to make $10,000?

1000

000

1000

0

1000

00 10

30%

0%

65%

5%

1.1. 1,000,0001,000,000

2.2. 10,00010,000

3.3. 100,000100,000

4.4. 1010

Here is the ultimate question! How many Here is the ultimate question! How many pennies would it take to make $10,000?pennies would it take to make $10,000?

5000

1000

0

1000

000

1000

0000

00

0%

37%

63%

0%

1.1. 5,0005,000

2.2. 10,00010,000

3.3. 1,000,0001,000,000

4.4. 1,000,000,0001,000,000,000

Look at what you recorded. Do you see a Look at what you recorded. Do you see a pattern?pattern?

CurrencyCurrency # needed# needed Power of Power of TenTen

$1,000$1,000 1010

$100$100 100100

$10$10 1,0001,000

$1$1 10,00010,000

$0.10$0.10 100,000100,000

$0.01$0.01 1,000,0001,000,000

Which system of measurement Which system of measurement uses powers of ten?uses powers of ten?

The metric systemThe metric system

THE METRIC SYSTEMTHE METRIC SYSTEMMETER (m):METER (m):

*About the width of a doorway.*About the width of a doorway.

CENTIMETER (cm):CENTIMETER (cm): *About the width of a paperclip.*About the width of a paperclip.

MILLIMETER (mm):MILLIMETER (mm): *About the thickness of a dime. *About the thickness of a dime.

How Small Is SmallHow Small Is Small

Strip of paperStrip of paper

Recording sheetRecording sheet

RulerRuler

Pair of scissorsPair of scissors

We are going to try an experiment to see how small we can make a strip of paper.Each student will need the following materials:

How Small Is SmallHow Small Is SmallDirectionsDirections

Measure the length of the strip and record Measure the length of the strip and record on sheet.on sheet.

Fold the strip in half and cut it in the Fold the strip in half and cut it in the middle. middle.

Measure new strip and record.Measure new strip and record.

Repeat the above steps until you can no Repeat the above steps until you can no longer make any more folds.longer make any more folds.

5 minutes

Nano What?Nano What?

There are more nanometers in the length of your hand than there are cars in the United States!!!

Meter dm cm mm µ nm

The metric system is a base ten system so each unit is ten times larger or smaller than the unit before it.

1 Meter is…

Let’s ConvertLet’s Convert

How many centimeters are in a meter?How many centimeters are in a meter? * 100 or 10* 100 or 1022

How many millimeters are in a meter?How many millimeters are in a meter? * 1,000 or 10* 1,000 or 1033

How many micrometers are in a meter?How many micrometers are in a meter? * 1,000,000 or 10* 1,000,000 or 1066

How many nanometers are in a meterHow many nanometers are in a meter * 1,000,000,000 or 10* 1,000,000,000 or 1099

How many millimeters are in How many millimeters are in a meter?a meter?

100

1000

1000

0 10

6%13%

6%

75%1.1. 100100

2.2. 1,0001,000

3.3. 10,00010,000

4.4. 1010

How many nanometers are in How many nanometers are in one meter?one meter?

1000

010

0

1000

000

1000

0000

00

5%

55%

15%

25%

1.1. 10,00010,000

2.2. 100100

3.3. 1,000,0001,000,000

4.4. 1,000,000,0001,000,000,000

Let’s try to convert using a number.Let’s try to convert using a number.

Start with 3.4 meters. Look at your metric Start with 3.4 meters. Look at your metric sheet.sheet.How many jumps to you need to make to How many jumps to you need to make to get to cm? That is how many times get to cm? That is how many times you move the decimal to the right.you move the decimal to the right.

Don’t forget to add zeros into your valleys.Don’t forget to add zeros into your valleys.We’ll try two more together.We’ll try two more together.

Meter dm cm mm µ nm

24m. Is _________________ mm.

5.6m. Is _________________ nm.

A Hummer H1 is about 5 meters in A Hummer H1 is about 5 meters in length. How many millimeters is that?length. How many millimeters is that?

50 500

5000

5000

000

6%

44%

38%

13%

1.1. 50 50

2.2. 500500

3.3. 5,0005,000

4.4. 5,000,0005,000,000

The average height of a female giraffe The average height of a female giraffe is 4 meters. How many nanometers tall is 4 meters. How many nanometers tall

is that?is that?

400

4000

000

4000

4000

0000

00

0%

74%

5%

21%

1.1. 400400

2.2. 4,000,0004,000,000

3.3. 4,0004,000

4.4. 4,000,000,0004,000,000,000

You’re How Tall?You’re How Tall?Does anyone know who Does anyone know who this person is and how tall this person is and how tall he/she is?he/she is?

_________ is about ____ _________ is about ____ centimeters tall.centimeters tall.

How many nanometers tall How many nanometers tall is he/she?is he/she?

Is there another way to Is there another way to write a big number?write a big number?

SCIENTIFIC NOTATIONSCIENTIFIC NOTATION

229 cm = 2.29m229 cm = 2.29m

2.29 m = ______________ mm or 2.9 x 102.29 m = ______________ mm or 2.9 x 10

2.29 m = ______________ µ or 2.9 x 102.29 m = ______________ µ or 2.9 x 10

2.29 m = ________________nm or 2.9 x 102.29 m = ________________nm or 2.9 x 10

Each group will need the following Each group will need the following supplies:supplies:

Measuring tapeMeasuring tape

CalculatorsCalculators

PencilsPencils

Recording sheetRecording sheet

Directions:Directions:Estimate how many centimeters tall you Estimate how many centimeters tall you are.are.

Measure height of each in group.Measure height of each in group.

Record the heights on the chart.Record the heights on the chart.

Convert every ones’ heights to cm, mm, Convert every ones’ heights to cm, mm, µ, and nm.µ, and nm.

Find the mean height for your group.Find the mean height for your group.

Answer the questions on the bottom of Answer the questions on the bottom of activity sheet.activity sheet.

15 minutes

Have a wonderful day!Have a wonderful day!