Tuesday, August 21Warm-Up

What is the mass shown on the balance below?

A: 501 grams

MYP Unit Question: Why Science? Area of Interaction: Approaches to LearningLearner Profile: InquirerStandard: Use tools and instruments for observing, measuring and manipulating equipment and materials in scientific activities. Learning Target: Today I’m learning about metric units because I will use them for scientific investigations

Intro to MetricsWork Session:

Opening:

Notes: Metric SystemMeasurement Activity

It’s a standard system of measurement that allows scientists to compare data and communicate with

other scientists all over the world.

Why use the Systeme International (SI)?

Scientists all over the world use the International System of Units to measure:

• Length• Volume• Mass• Density• Temperature• Time

The basic unit of length in the SI system is the …meter

MD D

H C K M

King Henry Died Monday Drinking Chocolate Milk

Kilo- Milli-

1000 .0001

Hecto- Centi-

100 .001

Deka- Deci-

10 .01

Meter1

MD D

H CK M

King Henry Died Monday Drinking Chocolate Milk

Kilo- Milli-

1000 .0001

Hecto- Centi-

100 .001

Deka- Deci-

10 .01

Meter1

Use the stair step to convert1. Determine the direction to

move2. Count the number of steps3. Add “0” for every step you

move

Example: 10 K = ? M

10 K = 10,000 M

3

MD D

H CK M

King Henry Died Monday Drinking Chocolate Milk

Kilo- Milli-

1000 .0001

Hecto- Centi-

100 .001

Deka- Deci-

10 .01

Meter1

1. 100 mm = ? M

2. 24 cm = ? hm

3 = .1

4 = .01

The longer lines on the metric ruler are called… • centimeters

How to read a metric ruler

The shorter lines on the metric ruler are called…• millimeters

One centimeter is divided into how many millimeters? • 10 millimeters (mm)

Measure the turtle from the rear of its shell to the tip of its nose. Record its length in both centimeters and millimeters.

• 10.5 cm

• 105 mm

Measuring Length

Ruler: http://www.k12math.com/math-concepts/measurement/ruler-cm.jpg

How many millimeters are in 1 centimeter?

What is the length of the line in centimeters? _______cm

What is the length of the line in millimeters? _______mm

What is the length of the line to the nearest centimeter? ________cm

HINT: Round to the nearest centimeter – no decimals.

1 centimeter = 10 millimeters

Closing: 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

Find the length (antennae to feet) of the following insects to the nearest whole or half cm:

3.5 cm 2 cm

5 cm 4.5 cmWARM-UPWed., Aug.

22

MYP Unit Question: Why Science? Area of Interaction: Approaches to LearningLearner Profile: InquirerStandard: Use tools and instruments for observing, measuring and manipulating equipment and materials in scientific activities. Learning Target: Today I’m learning about metric units because I will use them for scientific investigations

Opening: Mass, Grams, Length Video

Work Session: Continue working with metric conversions