Measurements: metric vs. imperial
Aims of the lesson:
I know the metric and imperial measurement units
I can convert measurement units
• Most countries in the world use the metric system of
measurement. In the past, the United Kingdom used
the imperial system. British people still use some
imperial measurements today, such as miles to
express distance, and pints to express capacity.
Task 1. Translation
Foot (ft) - pēda
Gram (g) – grams
Kilogram (kg) – kilograms
Mile (mi) – jūdze
Kilometre (km) – kilometrs
Inch (in) – colla
Metre (m) – metrs
pound (lb) – mārciņa
centimetre (cm) – centimetrs
litre (l) - litrs
centilitre (cl) – centilitrs
pint (pt) - pinte
gallon (gal) - galons
The usage of measurement units
Metric
Imperial
Length
Kilometre
Metre
centimetre
Foot
Mile
inch
Weight
Gram
kilogram
Pound
Capacity
Litre
centilitre
Pint
gallon
Doing convertions
1 km
=
0.625 mile
30.5cm
=
1 foot
2.54cm
=
1 inch
1 kg
=
2.2 lb
4.5 litres
=
1 gallon
1 litre
=
1.75 pints
1 kg = 2.2. pounds
To convert from pound to
kilograms, we divide by 2.2
e.g. 11 pounds = 11 ÷2.2 = 5 kg
To convert kilograms to
pounds, we multiply by 2.2
e.g. 5 kilograms = 5 x 2.2 = 11
pounds
Time for Kahoot