today we will be learning to: use standard metric and imperial units for measuring capacity convert...

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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.

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