1. One way to do this uses mm, cm and m three times each.
Measures and units
[GM4.2 Core Starter]
Here is a list of numbers. Put the correct units (mm, cm or m) in the boxes so that the lengths are in order from shortest to longest.
Make up and try out a similar puzzle for yourself.
1        5  
One way to do this uses mm, cm and m three times each.
Shortest
Longest
Preamble
This activity, suitable for individual working, should bring to the fore any problems regarding conversion between metric units of length and the ensuing multiplication and division by powers of ten. This area is one with which even the most capable experience occasional problems. A useful homework task would be the construct similar problems, and test them in class, involving mass, area and capacity.
Possible content
Converting between different metric units of length.
Resources
None.
Solution/Notes
Original Material © Cambridge University Press 2010
1 mm cm m mm m mm cm 5 m cm
Original Material © Cambridge University Press 2010