Conversion of the units of measurement 4 day lesson

1. STARTER :
I want to know the length of the interactive
board. Which instruments can I use?
can anyone give a rough guess of the
measurement of the length of their desk?
Apart from the unit you used initially are
there other units for measuring length?

2. Vocabulary:
1. Capacity
2. Hand span
3. Weight
4. Mass
5. length

3. TOPIC: Conversion of the unit of measurement
WALT :
1. Say the meaning of length and instruments for measuring
length.
2. State the metric unit for length measure
3. Convert the units of length.

4. SUCCESS CRITERIA:
1. I can say the meaning of length and
instruments for measuring length.
2. I can state the metric unit for length
measure
3. I can convert the units of length.

5. DIRECT INSTRUCTION/TEACHER INPUT
What is length?
length simply means how long or short an object is.
length is measured in Metres however this can appear in
different bits such as Centimetres, decimetres, kilometres
etc.
Can you list some instrument for linear measure (length)?
Bravo! They include meter rule, odometre, tape rule, hand
span, feet etc.

6. INSTRUMENTS FOR MEASURING length

7. Metric units for linear measure
(length)
10 Millimeter = 1 Centimetre
10 Centimetre = 1 Decimetres
10 Decimetres = 1 Metres
1000 Metres = 1kilometres
Also note that...
100 millimetres = 1 decimetre
1000 millimetres = i metre
100centemetres = 1 metre

8. SHARED/INTERACTIVE INSTRUCTION
conversion of the units of length
Steps
1.Identify the bigger and smaller unit in your work
2.Identify their relationship.
Example 100 millimeter make one decimetre this means that the
relationship between millimeter and decimeter is 100
3. When you convert from the bigger unit to the smaller unit, you
multiply the bigger unit by their relationship.
4.When you convert from a smaller unit to the greater one you divide
by their relationship.

9. Conversion of the units of length
Examples : convert the following
1. Convert 123 cm to mm
2. Change 65 metres to mm
3. Write 4530 mm as decimeter
4. Express 4536 m as km ÷
Solution 1
Convert 123 cm to mm
The relationship = 10
since 10mm=1cm
We are converting from a bigger unit to a
smaller unit so we multiply by
10(relationship)
123 cm = 123 x 10
= 1230 mm
Solution 2
Convert 65m to cm
The relationship = 100
since 100cm=1m
We are converting from a bigger unit to a
smaller unit so we multiply by
100(relationship)
65m = 65 x 100
= 6500cm

10. Conversion of the units of length
Examples : convert the following
1. Convert 123 cm to mm
2. Change 65 metres to mm
3. Write 4530 mm as decimeter
4. Express 4536 m as km
Solution 1
Write 4530 mm as decimeter
The relationship = 100
since 100mm=1dm
We are converting from a smaller unit to
a bigger unit so we divide by
100(relationship)
4530m = 4530 ÷ 10
= 435 dm
Solution 1
Express 4536 m as km
The relationship = 1000
since 1000m=1km
We are converting from a smaller unit to
a bigger unit so we divide by
1000(relationship)
65m = 4563 ÷ 1000
= 4.563 km

11. MINI-PLENARY
What are the steps involved in converting
the units of length?

12. GROUP TASK
Pace setters
Choose the appropriate
instrument and
measure the length of
the following objects
in centimeters and
express your answers
both in millimetres and
metres.
1. Your desk
2. The white board
3. The length of the
door
Goal getters
Choose the appropriate
instrument and measure
the length of the
following objects in
centimeters and
express your answers
both in millimetres and
decimetre
1. Your desk
2. The white board
3. The length of the
door
Star takers
Choose the appropriate
instrument and measure
the length of the
following objects in
centimeters and
express your answers
both in millimetres and
decimetre
1. Your desk
2. The white board
3. The length of the
door

13. ASSESSMENT PLENARY (whole class)
1. What is length
2. Mention 5 instruments for measuring
length

14. INDEPENDENT TASK
Pace setters
Convert the following
1.Convert 542 cm to
mm.
2.Change 33 metres to
mm.
3.Write 367 mm as
decimeter.
4.Express 4536 m as
km.
Goal getters
Convert the following
1. Convert 542 cm to
mm.
2. Change 33 metres to
mm.
3. Express 4536 m as
km.
Star takers
Convert the following
1.Convert 542 cm to
mm.
2.Change 33 metres to
mm.
3.Write 367 mm as
decimeter.

16. STARTER :
1. say the metric measure unit for length
2. look at these objects, can you tell which is
heavier? ( A flat stone and a text book).
How did you know?
If you want to know their exact weight which
instruments are you likely to use?

17. Vocabulary:
1. Capacity
2. Hand span
3. Weight
4. Mass
5. length

18. TOPIC: Conversion of the unit of measurement
WALT :
1. Say the meaning of weight and instruments for measuring
weight.
2. State the metric unit for weight measure
3. Convert the units of weight.

19. SUCCESS CRITERIA:
1. I can say the meaning of weight and
instruments for measuring weight.
2. I can state the metric unit for weight
measure
3. I can convert the units of weight.

20. DIRECT INSTRUCTION/TEACHER INPUT
What is weight?
length simply means how heavy or light an object is.
weight is measured in grammes however this can appear in
different bits such as Centigrammes, decigrammes,
kilogrames tonne etc.
Can you list some instrument for mass (weight)?
Bravo! They include weighing balance, weighing scales,
weighing beam etc.

21. INSTRUMENTS FOR MEASURING weight

22. Metric units for mass (weight)
10 Milligramme = 1 Centigramme
10 Centigramme = 1 Decigrammes
10 Decigrammes = 1 grammes
1000 grammes = 1 kilogrammes
Also note that...
100 milligrammes = 1 decigramme
1000 milligrammes = i gramme
100centigrammes = 1 gramme

23. SHARED/INTERACTIVE INSTRUCTION
conversion of the units of weight
Steps
1.Identify the bigger and smaller unit in your work
2.Identify their relationship.
Example 100 milligrammes make one decigramme this means that
the relationship between millimeter and decimeter is 100
3. When you convert from the bigger unit to the smaller unit, you
multiply the bigger unit by their relationship.
4.When you convert from a smaller unit to the greater one you divide
by their relationship.

24. Conversion of the units of weight
Examples : convert the following
1. Convert 45 cg to mg
2. Change 20.6 grammes to mg
3. Write 2354 mg as dg
4. Express 234g as kg
Solution 1
Convert 45 cg to mg
The relationship = 10
since 10mg=1cg
We are converting from a bigger unit to a
smaller unit so we multiply by
10(relationship)
45 cm = 45 x 10
= 450 mg
Solution 2
Change 20.6 grammes to mg
The relationship = 100
since 100cg=1g
We are converting from a bigger unit to a
smaller unit so we multiply by
100(relationship)
= 2060cm

25. Conversion of the units of weight
Examples : convert the following
1. Convert 45 cg to mg
2. Change 20.6 grammes to mg
3. Write 2354 mg as decigrammes
4. Express 234g as kg
Solution 1
Write 2354 mg as decigrammes
The relationship = 100
since 100mg=1dg
We are converting from a smaller unit to
a bigger unit so we divide by
100(relationship)
2354mg = 2354 ÷ 10
= 235.4 dg
Solution 1
Express 234g as kg
The relationship = 1000
since 1000g=1kg
We are converting from a smaller unit to
a bigger unit so we divide by
1000(relationship)
234g = 234 ÷ 1000
= 0.234 kg

26. MINI-PLENARY
What are the steps involved in converting
the units of Weight?

27. GROUP TASK
Pace setters
Choose the appropriate
instrument and
measure the length of
the following objects
in centiigrammes and
express your answers
both in milligrammes
and grammes.
1. Lunch box.
2. Your weight.
3. Your mathematics
textbook.
Goal getters
Choose the appropriate
instrument and measure
the length of the
following objects in
centiigrammes and
express your answers
both in milligrammes
and decigramme
1. Lunch box.
2. Your weight.
3. Your mathematics
textbook.
Star takers
Choose the appropriate
instrument and measure
the length of the
following objects in
centiigrammes and
express your answers
both in milligrammes
and decigramme
1. Lunch box.
2. Your weight.
3. Your mathematics
textbook.

28. ASSESSMENT PLENARY (whole class)
1. What is weight
2. Mention 5 instruments for measuring
weight

29. INDEPENDENT TASK
Pace setters
Convert the following
1.Convert 15.5 cg to mg
2.Change 10.6 g to mg
3.Write 1774 mg as dg
4.Express 431g as kg
Goal getters
Convert the following
1. Convert 15.5 cg to
mg
2. Change 10.6 g to mg
3. Write 1774 mg as dg
4. Express 1431g as kg
Star takers
Convert the following
1.Convert 15 cg to mg
2.Change 10 g to mg
3.Write 1774 mg as dg
4.Express 1200g as kg

31. STARTER :
1. say the metric measure unit for weight
2. I want to know the amount of liquid this
container can hold?
Can you tell us the capacity of you water
bottle?
What are the instruments for measuring
capacity

32. Vocabulary:
1. Capacity
2. Hand span
3. Weight
4. Mass
5. length

33. TOPIC: Conversion of the unit of measurement
WALT :
1. Say the meaning of capacity and instruments for
measuring capacity.
2. State the metric unit for capacity measure
3. Convert the units for measuring capacity.

34. SUCCESS CRITERIA:
1. I can say the meaning of capacity and
instruments for measuring capacity.
2. I can state the metric unit for capacity
measure
3. I can convert the units of capacity
measure.

35. DIRECT INSTRUCTION/TEACHER INPUT
What is capacity?
capacity simply means the amount of liquid a container can
take
capacity is measured in litres however this can appear in
different bits such as Centilitres, decilitres, kilolitres etc.
Can you list some instrument for fluid volume (capacity)?
Bravo! They include jerry cans. Measuring cylinder,
caliberated containers etc.

36. INSTRUMENTS FOR MEASURING CAPACITY

37. Metric units for volume measure
(capacity)
10 Millilitres = 1 Centilitre
10 Centilitres = 1 Decilitre
10 Decilitres = 1 litre
1000 litres = 1kilolitre
Also note that...
100 millilitres = 1 decilitre
1000 millilitres = i litre
100centelitres = 1 litre

38. SHARED/INTERACTIVE INSTRUCTION
conversion of the units of capacity
Steps
1.Identify the bigger and smaller unit in your work
2.Identify their relationship.
Example 100 millilitres make one decilitres this means that the
relationship between millilitres and decilitres is 100
3. When you convert from the bigger unit to the smaller unit, you
multiply the bigger unit by their relationship.
4.When you convert from a smaller unit to the greater one you divide
by their relationship.

39. Conversion of the units of capacity
Examples : convert the following
1. Convert 23 cl to ml
2. Change 12Lto ml
3. Write 7630 ml as dl
4. Express 936 cl as L
Solution 1
Convert 23 cl to ml
The relationship = 10
since 10ml=1cl
We are converting from a bigger unit to a
smaller unit so we multiply by
10(relationship)
23 cl = 23 x 10
= 230 ml
Solution 2
Convert 12l to ml
The relationship = 100
since 100ml=1cl
We are converting from a bigger unit to a
smaller unit so we multiply by
100(relationship)
12l = 12 x 100
= 1200c;

40. Conversion of the units of capacity
Examples : convert the following
1. Convert 23 cl to ml
2. Change 12Lto ml
3. Write 7630 ml as dl
4. Express 936 cl as L
Solution 1
Write 7630 ml as dl
The relationship = 100
since 100ml=1dl
We are converting from a smaller unit to
a bigger unit so we divide by
100(relationship)
7630m = 7630 ÷ 10
= 763 dm
Solution 1
Express 936 cl as L
The relatonship = 100
since 100cl=1l
We are converting from a smaller unit to
a bigger unit so we divide by 100
(relationship)
65m = 963 ÷ 100
= 963L

41. MINI-PLENARY
What are the steps involved in converting
the units of capacity?

42. GROUP TASK
Group 1
Using a measuring
cylinder, measure
the capacity of
the containers
placed in front of
the class in
centilitres and
express it in
milliitres and
litres.
Group 2
Using a measuring
cylinder, measure
the capacity of
the containers
placed in front of
the class in
centiliters and
express it in
milliliters and
litres.
Group 3
Using a measuring
cylinder, measure
the capacity of
the containers
placed in front of
the class in
centiliters and
express it in
milliliters and
litres.

43. ASSESSMENT PLENARY (whole class)
1. What is capacity.
2. Mention 5 instruments for measuring
the capacity.

44. INDEPENDENT TASK
Pace setters
Convert the following
1.Convert 25.3 cl to ml
2.Change 12.5Lto ml
3.Write 630 ml as dl
4.Express 936 cl as L
Goal getters
Convert the following
1. Convert 25.3 cl to ml
2. Change 12.5 L to ml
3. Write 7630 ml as dl
4. Express 1936 cl as L
Star takers
1.Convert 23 cl to ml
2.Change 12Lto ml
3.Write 7630 ml as dl
4.Express 936 cl as L

46. STARTER :
1. say the metric measure unit for length
2.What is the difference between capacity,
weight and length.
3.What is the unit for measuring capacity,
weight and length.

47. Vocabulary:
1. Capacity
2. Hand span
3. Weight
4. Mass
5. length

48. TOPIC: word problems on the conversion of
the unit of measurement
WALT :
1. Explain the steps involved in solving word
problems.
2. Solve word problems on addition and subtraction
of units of measurement.
3. Solve word problems on conversion of
measurement.

49. SUCCESS CRITERIA:
1. Explain the steps involved in solving word
problems.
2. Solve word problems on addition and
subtraction of units of measurement.
3. Solve word problems on conversion of
measurement.

50. DIRECT INSTRUCTION/TEACHER INPUT
What is the acronymn for solving word problems?
C.U.B.E.S..
C – CIRCLE THE NUMBERS
U- UNDERLINE THE QUESTION
B- BOX THE KEYWORD
E- ENUMERATE AND EVALUATE
S- SOLVE

51. Metric units for linear measure
(length)
10 Millimeter = 1 Centimetre
10 Centimetre = 1 Decimetres
10 Decimetres = 1 Metres
1000 Metres = 1kilometres
Also note that...
100 millimetres = 1 decimetre
1000 millimetres = i metre
100centemetres = 1 metre

52. SHARED/INTERACTIVE INSTRUCTION
STEPS TO SOLVE WORD PROBLEMS
Steps
C.U.B.E.S..
C – CIRCLE THE NUMBERS
U- UNDERLINE THE QUESTION
B- BOX THE KEYWORD
E- ENUMERATE AND EVALUATE
S- SOLVE

53. Addition and subtraction of units of measurement
Examples :
1. A boy has 23.5 litres of fruit juice, his sister has 324 cl of fruit
juice. How many litres of juice do they have together?
2. John rode his bicycle for 430 metre while Jane rode for 1.2 km.
How many more distance did jane covered than John in metres?
3. Express 2kg – 1350 g in grammes.
Solution 1
The boy has 23.5 L
His sister has 324cl = 32.4 L
(divided 324cl by 100)
because 100cl =1 litres
Therefore together they have 55.92L
of juice
Solution 2
John rode for 430m
Jane rode for 1.2km = 1200m
(multiplied 324cl by 1000)
because 1000g =1 kg
Therefore Jane rode 1200m – 430m
more than John.
1200m – 430m = 770m

54. Addition and subtraction of units of measurement
Examples :
1. A boy has 23.5 litres of fruit juice, his sister has 324 cl of fruit
juice. How many litres of juice do they have together?
2. John rode his bicycle for 430 metre while Jane rode for 1.2 km.
How many more distance did jane covered than John in metres?
3. Express 2kg – 1350 g in grammes.
Solution 3
2kg = 2 x 1000 2000g
(multiply by 1000)
because 1g = 1000kg
2000 g
-1350 g
650 g

55. MINI-PLENARY
What are the steps involved in solving word
problems

56. GROUP TASK
Pace setters
Choose the appropriate
instrument and
measure the length of
the following objects
in centimeters and
express your answers
both in millimetres and
metres.
1. Your desk
2. The white board
3. The length of the
door
Goal getters
Choose the appropriate
instrument and measure
the length of the
following objects in
centimeters and
express your answers
both in millimetres and
decimetre
1. Your desk
2. The white board
3. The length of the
door
Star takers
Choose the appropriate
instrument and measure
the length of the
following objects in
centimeters and
express your answers
both in millimetres and
decimetre
1. Your desk
2. The white board
3. The length of the
door

57. ASSESSMENT PLENARY (whole class)
1. What is length
2. Mention 5 instruments for measuring
length

58. INDEPENDENT TASK
Pace setters
1.Express 345 g +
1.23kg in grammes
2.Find the difference
of 150cl and 40 litres
and express your
answer in cl
3.Mr. Akinyemi drove
for 2500 metres to a
shopping mall and
drove another 3.5
kilometers to a park.
How long did he drive
altogether? Express
your answer in
kilometres
Goal getters
1. Express 345 g +
1.23kg in grammes
2. Find the difference
of 150cl and 40
litres and express
your answer in cl
3. Mr. Akinyemi drove
for 2500 metres to a
shopping mall and
drove another 3.5
kilometers to a park.
How long did he
drive altogether?
Express your answer
in kilometers or
metres
Star takers
1.Express 345 g +
1.23kg in grammes
2.Find the difference
of 150cl and 40 litres
and express your
answer in cl
3.Mr Akinyemi drove
for 2500 metres to a
shopping mall and
drobe another 3.5
kilometers to a park.
How long did he drive
altogether? Express
your answer in
kilometres or metres