1. Meters, Grams and Liters
The Metric System
Meters, Grams and Liters

2. Introduction to Standard and Metric Measurement
Why Learn to Measure?
Gateway To Technology
Unit 1 – Lesson 1.3 – Dimensioning
Valuable skill for a job
Valuable skill for hobbies
Valuable skill for every day life
“Although you are probably familiar with rulers, yard sticks, tape rules, folding rules, and tape measures, you will also find rulers on many machines that you use such as saws, sewing machines, photocopiers, and computer scanners. Computer programs like Microsoft Word and Adobe PhotoShop have electronic rulers that you can turn on to help you with the exact placement of items. As you can tell, reading a ruler is a valuable skill that you will use almost every day both on and off the job.”

3. The Metric System
The metric system is a measurement system based on our decimal (base 10) number system.
Other countries and all scientists and engineers use the metric system for measurement.
Three countries have not officially adopted the International System of Units as their primary or sole system of measurement: Liberia, Myanmar, and the United States. The U. S. has switched to Metric with
Sporting Events - Olympics
Military
Medicine
Scientific studies
At this time, Manufacturing; Transportation; and Construction Industries; are primarily using the U.S. Customary system. In certain sectors, the conversion is obvious (i.e. – Automobiles). However, in these industry areas the changes have not been as complete.
This is the reasoning for studying both measurement systems used in the United States.

4. Introduction to Standard and Metric Measurement
Gateway To Technology
Unit 1 – Lesson 1.3 – Dimensioning
Measurement Systems
Two types of measurement systems exist.
Standard (Customary)
Three countries have not officially adopted the International System of Units as their primary or sole system of measurement: Liberia, Myanmar, and the United States. The U. S. has switched to Metric with
Sporting Events - Olympics
Military
Medicine
Scientific studies
At this time, Manufacturing; Transportation; and Construction Industries; are primarily using the U.S. Customary system. In certain sectors, the conversion is obvious (i.e. – Automobiles). However, in these industry areas the changes have not been as complete.
This is the reasoning for studying both measurement systems used in the United States.
Metric (SI or International System)

5. Metric Prefixes Prefix Symbol Factor Number Factor Word Kilo- k 1000
Metric Units
The metric system has prefix modifiers that are multiples of 10.
Prefix
Symbol
Factor Number
Factor Word
Kilo- k
1000
Thousand
Hecto- h
100
Hundred
Deca-
da or dk 10
Ten
Unit
m, l, or g 1
One
Deci- d .1
Tenth
Centi- c
.01
Hundredth
Milli- m
.001
thousandth

6. Place Values of Metric Prefixes
Thousand
Hundred
Ten
One
Tenth
Hundredth
Thousandth km kg kL hm hg hL
dkm
dkg
dkL m g L dm dg dL cm cg cL mm mg mL

7. Meters
Meters measure length or distance

8. Millimeters One millimeter is about the thickness of a dime.
10 mm = 1 cm

9. Centimeter One centimeter is about the width of a large paper clip
or your fingernail.

10. Introduction to Standard and Metric Measurement
Let’s Practice
Gateway To Technology
Unit 1 – Lesson 1.3 – Dimensioning
What is the distance from the end of the ruler to A?
4 mm = 0.4 cm
What is the distance from the end of the ruler to B?
19 mm = 1.9 cm
What is the distance from the end of the ruler to C?
37 mm = 3.7 cm
What is the distance from the end of the ruler to D?
63 mm = 6.3 cm
What is the distance from the end of the ruler to E?
73 mm = 7.3 cm

11. Meter
A meter is about the width of a doorway

12. Kilometer A kilometer is about six city blocks or 10 football fields.
1.6 kilometers is about 1 mile
AND 1 kilometer is about .6 miles

13. The Gram Grams are used to measure mass or the weight of an object.
Please get familiar with this now. We will use the gram quite frequently this year especially when we use the triple beam balance.

14. Milligrams
A milligram weighs about as much as a grain of salt.

15. Gram 1 gram weighs about as much as a small paper clip.
1 kilogram weighs about as much as 6 apples or 2 pounds.

16. Liters
Liters measure liquids or capacity. The liter unit is used when measuring VOLUME.
2 Liter Soda

17. Milliliter 1 milliliter is about the amount of one drop
We use the milliliter often when using graduated cylinders.

18. Liter
1 liter is half of a 2 liter bottle of Coke or other soda

19. Liter
A kiloliter would be about liter bottles of pop

20. What unit would you
use to measure each of
the following items?

21. Which unit would you use to measure the length of this bicycle?
km m cm mm

22. Which unit would you use to measure the mass of a penny?
km g cL mg

23. Which unit would you use to measure the water in an aquarium?
L m cL mg

24. Which unit would you use to measure the mass of a feather?
L m cL mg

25. Which unit would you use to measure the mass of a student desk?
kg g cL mg

26. Which unit would you use to measure the mass of a whole watermelon?
kg g cL mg

27. Which unit would you use to measure the mass of an egg?
kg g mm mg

28. Which unit would you use to measure a can of soup?
kL L mm mL

29. Which unit would you use to measure this glass of milk?
kL L cL mL

30. Which unit would you use to measure the distance across Kansas?
km m cm mL

31. Which unit would you use to measure the height of a tree?
km m cm mm

32. Which unit would you use to measure the length of a bracelet?
km m cm mm

33. You are totally awesome!

34. Changing Metric Units
To change from one unit to another in the metric system you simply multiply or divide by a power of 10.

35. To change from a larger unit to a smaller unit, you need to multiply.
1 km x 1000 = 1000 m
1 m x 100 = 100 cm
1 cm x 10 = 10mm

36. Place Values of Metric Prefixes
Move the decimal point to the right to multiply.
Thousand
Hundred
Ten
One
Tenth
Hundredth
Thousandth km kL kg hm hL hg
dkm
dkL
dkg m L g dm dL dg cm cL cg mm mL mg

37. Place Values of Metric Prefixes
Thousand
Hundred
Ten
One
Tenth
Hundredth
Thousandth km kg kL hm hg hL
dkm
dkg
dkL m g L dm dg dL cm cg cL mm mg mL

38. To change from smaller units to larger units you divide by a power of ten.
1000mm ÷ 10 = 100cm
100cm ÷ 10 = 10dm
10dm ÷ 10 = 1m

39. Place Values of Metric Prefixes
Move the decimal point to the left to divide.
Thousand
Hundred
Ten
One
Tenth
Hundredth
Thousandth km kL kg hm hL hg
dkm
dkL
dkg m L g dm dL dg cm cL cg mm mL mg

40. Place Values of Metric Prefixeskm kg kL hm hg hL
dkm
dkg
dkL m g L dm dg dL cm cg cL mm mg mL
3km
30hm
300dkm
3000m 4L
30000dm
300000cm
12cm mm

42. Sorry!
That is not the BEST choice!
Try again!

44. You're on a roll!!

45. Thumbs up!

46. You are first rate!!

47. Way to shine!

48. Awesome job!