1. Units of measurement
GM2.4 Core Plenary
Choose the approximate answers to these conversions from the table.
a 900 feet in metres
b 5 ounces in grams
c 30 pints in litres
d 50 miles in kilometres
e 300 grams in ounces
f 5 kilograms in pounds
g 22 pounds in kilograms
Make up some other conversions whose answers are in the table. 2  4  6  8  9 
10 
11 
15 
16 
20 
22 
24 
30 
32 
36 
40 
45 
50 
60 
80 
100
120
150
300
500
Preamble
A quick-fire activity to probe pupils’ recall of metric–imperial conversions, which are always found difficult. Using a wipe board will provide instant feedback on pupils’ particular difficulties. A topic like this needs several visits.
Possible content
Converting between metric/imperial units.
Resources
Wipe boards. It may also be useful to have flashcards showing the conversion factors, to act as cues.
Solution/Notes
a 300
b 150
c 15
d 80
e 10
f 11
g 10
Original Material © Cambridge University Press 2009
Original Material © Cambridge University Press 2009