1. Length, Mass
and Capacity

2. 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.

3. Mental Activity We are going metric measures.
You will have 5 seconds to answer each question

4. How many metres in 1.75km.

5. How many grams in 2.5kg

6. How many kg in g

7. How many km in 18000m

8. How many litres in 2500ml.

9. How many millilitres in 3.75litres.

10. What is the approximate mass of an apple

11. Main Activity
Today we are going to use metric and imperial units for measuring capacity.

12. These lines are measured in cm. What do they measure in mm?

13. These things are measured in metres. What is the height in centimetres?
1080cm
3.42m
1.86m
342cm
186cm

14. Here are the equivalents. They are approximate.
1 inch = 2.5 centimetres
1 foot = 30 centimetres
3.3 feet = 1 metre
1 yard = 90 centimetres
1760 yards = 1 mile
1 mile = 1600 metres (1.6km)
Here are the equivalents. They are approximate.

15. How many millimetres are there in 4 inches?
1 inch = 2.5 centimetres
1 foot = 30 centimetres
3.3 feet = 1 metre
1 yard = 90 centimetres
1760 yards = 1 mile
1 mile = 1600 metres (1.6km)
How many millimetres are there in 4 inches?

16. How many centimetres are there in 2 feet?
1 inch = 2.5 centimetres
1 foot = 30 centimetres
3.3 feet = 1 metre
1 yard = 90 centimetres
1760 yards = 1 mile
1 mile = 1600 metres (1.6km)
How many centimetres are there in 2 feet?

17. Use your rulers and tape measures to measure objects around the classroom in both metric and imperial

18. Does anyone know the units we use to measure capacity?
What is capacity?
Does anyone know the units we use to measure capacity?
gallon
litre
centilitre
millilitre
half litre
pint
tablespoon
fluid ounce

19. Separate the units into imperial or metric.
litre
Imperial
Metric

20. Separate the units into imperial or metric.
pint
Imperial
Metric
litre

21. Separate the units into imperial or metric.
gallon
Imperial
Metric
pint
litre

22. Separate the units into imperial or metric.
centilitre
Imperial
Metric
pint
litre
gallon

23. Separate the units into imperial or metric.
millilitre
Imperial
Metric
pint
litre
gallon
centilitre

24. Separate the units into imperial or metric.
tablespoon
Imperial
Metric
pint
litre
gallon
centilitre
millilitre

25. Separate the units into imperial or metric.
fluid ounce
Imperial
Metric
pint
litre
gallon
centilitre
tablespoon
millilitre

26. Separate the units into imperial or metric.
half litre
Imperial
Metric
pint
litre
gallon
centilitre
tablespoon
millilitre
fluid ounce

27. How many millilitres are in one litre?
Imperial
Metric
pint
litre
gallon
centilitre
tablespoon
millilitre
fluid ounce
half litre

28. What is 500 millilitres in litres?
Imperial
Metric
pint
litre
gallon
centilitre
tablespoon
millilitre
fluid ounce
half litre

29. What is 250 millilitres in litres?
Imperial
Metric
pint
litre
gallon
centilitre
tablespoon
millilitre
fluid ounce
half litre

30. Do you know any relationships between the metric and imperial units?
pint
litre
gallon
centilitre
tablespoon
millilitre
fluid ounce
half litre

31. Here are the equivalents. They are approximate.
1 litre = 1.75 pints
4.5 litres = 1 gallon
25 millilitres = 1 tablespoon
Here are the equivalents. They are approximate.

32. How many pints are there in 4 litres?
1 litre = 1.75 pints
4.5 litres = 1 gallon
25 millilitres = 1 tablespoon
How many pints are there in 4 litres?

33. How many gallons are there in 27 litres?
1 litre = 1.75 pints
4.5 litres = 1 gallon
25 millilitres = 1 tablespoon
How many gallons are there in 27 litres?

34. How many millilitres are there in 8 tablespoons?
1 litre = 1.75 pints
4.5 litres = 1 gallon
25 millilitres = 1 tablespoon
How many millilitres are there in 8 tablespoons?

35. Remember a litre and a quarter is about a pint and three quaters
1 litre = 1.75 pints
4.5 litres = 1 gallon
25 millilitres = 1 tablespoon
Approx 5 litres = 8 pints = 1 gallon
Remember a litre and a quarter is about a pint and three quaters

36. How many litres in 3 gallons
1 litre = 1.75 pints
4.5 litres = 1 gallon
25 millilitres = 1 tablespoon
How many litres in 3 gallons

37. What might the conversion graph look like?
1 litre = 1.75 pints
4.5 litres = 1 gallon
25 millilitres = 1 tablespoon
What might the conversion graph look like?

38. 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.