This lesson contains 40 slides, with interactive quizzes and text slides.
Lesson duration is: 90 min
Items in this lesson
FS Maths
Measure conversions
Slide 1 - Slide
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Slide 2 - Poll
Bill is a builder. On Monday he made mortar mix. He used 24 kg of sand and 5 kg of cement. On Tuesday Bill will make the same type of mortar mix. He will use 36 kg of sand.
How much cement does he need to make the same type of mortar mix?
Slide 3 - Slide
Sand : Cement
24 : 5
1 : 0.208
36 : 7.5
Sand : Cement
24 : 5
12 : 2.5
36 : 7.5
Slide 4 - Slide
Lesson Aim
Today you will learn how to convert between metric measures.
You will also learn how to convert between metric and imperial measures using conversion factors & graphs.
Slide 5 - Slide
Lesson objectives
Convert between units of length, weight and capacity in metric systems.
Convert between metric measures & imperial measures using conversion factors.
Convert between measures using conversion graphs.
Slide 6 - Slide
When do we see or use measurements?
Slide 7 - Mind map
What units do we use in the metric system for…
Capacity
Weight
Length
cm
mm
m
km
mg
g
kg
cl
L
ml
Slide 8 - Drag question
Length
Length
1 centimetre (cm)
= 10 millimetres (mm)
1 metre (m)
= 100 centimetres (cm)
1 kilometre (km)
= 1,000 metres (m)
Slide 9 - Slide
Slide 10 - Slide
Length
Weight
1 gram (g)
= 1,000 milligrams (mg)
1 tonne (t)
= 1,000 kilograms (kg)
1 kilogram (kg)
= 1,000 grams (g)
Slide 11 - Slide
Slide 12 - Slide
Length
Capacity
1 centilitre (cl)
= 10 millilitres (ml)
1 litre (L)
= 1,000 millilitres (ml)
1 litre (L)
= 100 centilitres (cl)
Slide 13 - Slide
Slide 14 - Slide
Convert 350 cm into m
A
35 m
B
3500 m
C
3.5 m
D
0.35 m
Slide 15 - Quiz
Convert 4.4 cm into mm
A
440 mm
B
0.44 mm
C
0.044 mm
D
44 mm
Slide 16 - Quiz
Convert 2000 g into kg
A
20,000 kg
B
2 kg
C
200 kg
D
20 kg
Slide 17 - Quiz
Convert 9.09 kg into g
A
90,090 g
B
90.9 g
C
9,090 g
D
909 g
Slide 18 - Quiz
Convert 2350 ml into litres
A
235 l
B
2.35 l
C
23500 l
D
23.5 l
Slide 19 - Quiz
Convert 75 cl into ml
A
750 ml
B
7500 ml
C
7.5 ml
D
7,500 ml
Slide 20 - Quiz
Write down any imperial measurement units for length, weight & capacity?
Slide 21 - Mind map
Imperial units of length
Inch
Foot/feet
Yard
Mile
Conversions:
1 inch = 2.54 cm
1 mile = 1.6 km
Slide 22 - Slide
The distance between 2 drink stations along a marathon route is 5 miles.
1 kilometre (km) = 0.6214 mile
What is the distance in kilometres to two decimal places?
5 ÷ 0.6214
= 8.0463469
= 8.05 km
Slide 23 - Slide
A swimmer has been using a pool with a 50-yard length.
How many lengths would the swimmer need to do in the 25 m length pool to equal 10 lengths in the 50-yard pool?
1 yard = 0.9144 metres
timer
4:00
Slide 24 - Slide
50 x 0.91444 = 45.722 m
45.722 x 10 = 457.22 m
457.22 ÷ 25 = 18.2888
= 19 lengths
10 lengths x 50 = 500 yards
500 x 0.91444 = 457.22 m
457.22 ÷ 25 = 18.2888
= 19 lengths
Slide 25 - Slide
Imperial units of weight
Ounce (oz)
Pound (lb)
Stone
Conversions:
1 oz = 25 g
1 kg = 2.2 lbs
Slide 26 - Slide
Isabella weighs 51 kg.
What is this weight to the nearest stone?
Use the conversion 1 kg = 2.2 pounds and 1 stone = 14 pounds.
51 x 2.2 = 112.2 pounds
112.2 ÷ 14 = 8.014
= 8 stone
Slide 27 - Slide
Children under 4 years old must be seated in a child seat or a trailer. Cycle hire centres need to know the ages and weights of children under 4 years old.
One of the children is 3 ½ years old and weighs 3 stone.
The other is 18 months and weighs 25 pounds.
1 stone = 14 pounds
1 kilogram = 2.2 pounds
What is the weight of each child in kilograms? Round your answers to 2 decimal places.
timer
4:00
Slide 28 - Slide
Child 1 = 3 stones
3 stones x 14 pounds
= 42 pounds
42 ÷ 2.2 pounds
= 19.09 kg
Child 2 = 25 pounds
25 ÷ 2.2 pounds
= 11.36 kg
Slide 29 - Slide
Imperial units of Capacity
Pint
Gallon
Conversions:
1 gallon = 4.5 L
1 litre = 1 pints
43
Slide 30 - Slide
A water tank holds 500 litres of water.
Use the conversion 10 litres = 2.2 gallons to find its capacity in gallons.
Method 1:
500 ÷ 10
= 50
50 x 2.2
= 110 gallons
Method 2:
2.2 ÷ 10
= 0.22 (1 litre)
500 x 0.22
= 110 gallons
Slide 31 - Slide
When Amy is running, she needs to drink 70 fluid ounces of water.
How many litres is this?
Use the conversion 1 pint = 20 fluid ounces and 1 litre = 1 pints
timer
4:00
43
Slide 32 - Slide
70 ÷ 20 = 3.5 pints
3.5 ÷ 1.75 = 2
= 2 litres
Slide 33 - Slide
Converting currency
£1 = €1.18
1) A couple changed £200 into Euros to go on holiday. How much in Euros did they receive?
2) They returned with 54 Euros and exchanged these into pounds. How much in pounds did they receive?
£200 × 1.18
= 236 Euros
54 Euros ÷ 1.18
= £45.76
Slide 34 - Slide
Conversion graphs
Use the conversion graph to convert:
(a) 70 kg to pounds
(b) 120 pounds to kg
Slide 35 - Slide
Activity
Complete the measures worksheet.
timer
20:00
Slide 36 - Slide
Slide 37 - Open question
Review lesson objectives
Convert between units of length, weight and capacity in metric systems.
Convert between metric measures & imperial measures using conversion factors.
Convert between measures using conversion graphs.
Slide 38 - Slide
Self-study
Complete the following on BKSB:
Measures – Length, weight & capacity.
Measures – Compound measures.
Learning module, skills check & progression check to be completed for each module.