'This government will respond only when it is no longer prepared to assist with the cover-up. Parents should know the extent to which the shortage of teachers impacts on education.
'Action will be taken by members to protect education and to protect teachers from the excessive workload caused by shortages wherever and whenever it arises.
'The government rejects the need for protection of teachers from excessive workload describing a limit on working time as cumbersome and difficult to administer. That has left us with no choice but to go ahead with the ballot and now the action to provide the protection unavailable by any other means.
'This ballot in London is just the first. Already other ballots are being held in schools and across authorities in England.
'This government should set its house in order by addressing the salary and conditions of service problems which make education so unattractive to young people. It should set up an independent inquiry to sort out the mess it and its predecessor have created.'
A table showing a London borough by borough - and Doncaster - result of the ballot is available on request from LGCnet.