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Today we will be learning to:
• use standard metric and imperial units for measuring capacity
• convert from metric to imperial units
• plot a conversion graph.
Mental Activity
We are going metric measures.You will have 5 seconds to answer
each question
How many metres in 1.75km.
How many grams in 2.5kg
How many kg in 16 000g
How many km in 18000m
How many litres in 2500ml.
How many millilitres in 3.75litres.
What is the approximate mass of an apple
Main Activity
Today we are going to use metric and imperial units for measuring capacity.
These lines are measured in cm. What do they measure
in mm?
4.4cm
44mm
9.7cm
97mm
1.2cm
12mm
13.6cm
136mm
These things are measured in metres. What is the height in
centimetres?
1.86m
186cm342cm
3.42m
10.8m
1080cm
1 inch = 2.5 centimetres1 foot = 30 centimetres
3.3 feet = 1 metre1 yard = 90 centimetres
1760 yards = 1 mile
1 mile = 1600 metres (1.6km)
Here are the equivalents. They are approximate.
1 inch = 2.5 centimetres1 foot = 30 centimetres
3.3 feet = 1 metre1 yard = 90 centimetres
1760 yards = 1 mile
1 mile = 1600 metres (1.6km)
How many millimetres are there in 4 inches?
1 inch = 2.5 centimetres1 foot = 30 centimetres
3.3 feet = 1 metre1 yard = 90 centimetres
1760 yards = 1 mile
1 mile = 1600 metres (1.6km)
How many centimetres are there in 2 feet?
Use your rulers and tape measures to
measure objects around the classroom in both metric and imperial
litre centilitre
tablespoon
millilitre
pint
fluid ounce
half litre
gallon
What is capacity?
Does anyone know the units we use to measure capacity?
litre
Separate the units into imperial or metric.
Imperial Metric
pint
litre
Separate the units into imperial or metric.
Imperial Metric
gallon
litre
Separate the units into imperial or metric.
Imperial
pint
Metric
centilitre
litre
Separate the units into imperial or metric.
Imperial
pint
gallon
Metric
millilitre
litrecentilitre
Separate the units into imperial or metric.
Imperial
pint
Metric
gallon
tablespoon
litrecentilitre
millilitre
Separate the units into imperial or metric.
Imperial
pint
gallon
Metric
fluid ounce
litrecentilitre
millilitretablespoon
Separate the units into imperial or metric.
Imperial
pint
gallon
Metric
half litre
litrecentilitre
millilitretablespoon
fluid ounce
Separate the units into imperial or metric.
Imperial
pint
gallon
Metric
litrecentilitre
millilitretablespoon
fluid ounce half litre
How many millilitres are in one litre?
Imperial
pint
gallon
Metric
litrecentilitre
millilitretablespoon
fluid ounce half litre
What is 500 millilitres in litres?
Imperial
pint
gallon
Metric
litrepintcentilitre
millilitretablespoon
fluid ounce half litre
What is 250 millilitres in litres?
Imperial
gallon
Metric
litre
gallon centilitre
millilitretablespoon
fluid ounce half litre
Do you know any relationships between the metric and imperial units?
pint
Imperial Metric
1 litre = 1.75 pints4.5 litres = 1 gallon
25 millilitres = 1 tablespoon
Here are the equivalents. They are approximate.
1 litre = 1.75 pints4.5 litres = 1 gallon
25 millilitres = 1 tablespoon
How many pints are there in 4 litres?
1 litre = 1.75 pints4.5 litres = 1 gallon
25 millilitres = 1 tablespoon
How many gallons are there in 27 litres?
1 litre = 1.75 pints4.5 litres = 1 gallon
25 millilitres = 1 tablespoon
How many millilitres are there in8 tablespoons?
1 litre = 1.75 pints
4.5 litres = 1 gallon
25 millilitres = 1 tablespoon
Remember a litre and a quarter is about a pint and three quaters
Approx 5 litres = 8 pints = 1 gallon
1 litre = 1.75 pints4.5 litres = 1 gallon
25 millilitres = 1 tablespoon
How many litres in 3 gallons
1 litre = 1.75 pints4.5 litres = 1 gallon
25 millilitres = 1 tablespoon
What might the conversion graph look like?
Group Work
Work in pairs to draw a conversion graph for 1
gallon = 4.5 litres. Write six questions for your graph.
Swap with another pair and find the answers to their
questions.
