Basic HTML Version
3
Imperial
1 grain
1 dram
1 ounce (oz) (= 16 drams)
1 pound (lb) (= 16 ounces)
1 stone (= 14 pounds)
1 quarter (= 2 stones)
1 hundredweight (cwt) (= 112 lbs)
1 (long ton)
*
1 (short ton)
**
Metric
0.065 gram
1.772 grams
28.35 grams
0.4536 kilograms
6.35 kilograms
12.70 kilograms
50.80 kilograms
1.016 tonnes
0.907 tonnes
Imperial
0.015 grain
0.154 grain
1.543 grains
15.43 grains
5.64 drams
3.527 ounces
2.205 pounds
0.984 long ton
Metric
1 milligram (mg)
1 centigram (= 10 mg)
1 decigram (= 100 mg)
1 gram (g) (= 1000 mg)
1 decagram (= 10 g)
1 hectogram (hg) (= 100 g)
1 kilogram (kg) (= 1000 g)
1 tonne (= 1000 kg)
Mass (Weight)
4
Classwork
Play a team game which will help you practise saying numbers and converting
measurements. In teams, prepare your questions. Ask each other your maths questions and see which
team is quickest at getting the right answers (you must decide beforehand whether calculators are
allowed or not!). Ask each other questions such as:
He drank four litres of water, how many pints is
that? The boxer weighed in at 15 stone, what’s that in kilos? I’ve put 3 gallons of petrol in my car, what’s
that in litres?
Prepare 10 questions per group/team.
WORKING ON SKILLS
Describing a diagram or the position of something
Look at this grid which shows different ways of saying where something is and use it for reference for the
next exercises.
*
The British ton is the long ton, which is 2,240 pounds.
**
The U.S. ton is the short ton which is 2,000 pounds. Both tons are actually defined in the same way. 1 ton = 20
cwt. It is just the definition of the hundredweight that differs between countries. In the U.S. 1 cwt = 100 punds; In
the UK 1 cwt = 112 pounds.
halfway along
at the top
(in the background)
(in the foreground)
one third of the
way down
two thirds of the
way up
in the in the centre
in the middle
halfway up
on the
left-hand
side
on the
right-hand
side
halfway down
ON
THE
LEFT
ON
THE
RIGHT
one third of the
way up
at the bottom
two thirds of the
way down
bottom left-hand
corner
bottom right-hand
corner
top left-hand
corner
top right-hand
corner
Progetto FOR MECHANICALS_unit_1.indd 37
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