Stretching the Constitution
The UK Constitution is uncodified, and the key factor that is always put forward to support this status is that it affords the system flexibility.
This flexibility has been tested by the current coalition. Cameron and Clegg has taken aspects of the Constitution and reformed, stretched or disregarded procedure and convention in order to sustain a government that few commentators felt would last as long as it has when Cameron and Clegg stood in the Rose Garden at Downing Street back in 2010.
This post from Democratic Audit, looks at the constitution under the coalition in an article that provides lots of examples of flexibility and recent constitutional change that will be useful for Unit 2 essays on the constitution.