NASUWT's general secretary Chris Keates says most cases of teachers being paid compensation could be avoided if employers followed good employment practices.
The NASUWT's largest assault claim was for a West Midlands secondary school teacher who was injured after being assaulted by two pupils, as she attempted to break up a fight between the pair.
She received £113,905 in compensation, plus an additional £200,473 in a Criminal Injuries Compensation Authority (CICA) award.
A 33-year-old college teacher from the East Midlands was given a settlement of £500,000 after sustaining a back injury when a lift she was travelling in at work suddenly dropped from the mezzanine floor to the reception.
A third NASUWT member, from the South East, got a CICA compensation award worth £91,784 after being punched in the mouth by a Year 10 pupil. The 59-year-old suffered a broken root on a tooth and developed post-traumatic stress disorder.
Tens of millions of pounds worth of compensation was awarded to teachers in the last year for accidents, attacks and discrimination at work.
Figures show a surge in payouts to school staff, with the overall totals reaching record levels.
One 33-year-old West Midlands teacher received more than £300,000 after she was injured breaking up a fight between two pupils.
Information obtained from three of the UK's largest unions show that a number of school staff were handed five or six-figure payouts, with figures indicating that the total amount paid out in compensation last year stretched to more than £40 million.
The NASUWT teaching union said it secured around £20.7 million for its members in 2013 - over 30% more than in 2012.
A planned one-day walkout by teachers across England has been halted after Education Secretary Michael Gove confirmed he is willing to discuss a basis for "genuine talks".
The National Union of Teachers (NUT) and the NASUWT - two of England's biggest teaching unions - had planned the strike before Christmas in a continuing row over pay, pensions and conditions.
The unions said they have now received confirmation that Gove was willing to meet to discuss their key issues and as a result they would be suspending strike action.
Tens of thousands of teachers are taking part in the one-day walkout, according to union leaders, in the latest stage of industrial action over pay, pensions and conditions.
Members of the NASUWT, along with the National Union of Teachers (NUT), are staging walkouts in the North East and Cumbria, the South West, South East and London.
The Government said that just over a quarter of schools in the four English regions hit by the strike had been forced to shut their doors, as it condemned the action.
Only 27% of schools in regions targeted by today's teachers strikes are closed, according to the Department for Education.
The figure compares to the 60% closures in the same regions during November 2011, the Government said.
Thousands of children are off school today, as teachers take part in a national strike. Teachers in Oxford are demonstrating on the streets of the city.
Only 8% of parents support the education secretary's reforms and think they are good for their children, the general secretary of the National Teacher's Union (NUT) said.
Christine Blower made it clear no one - teachers and parents - wanted to resort to a strike, but industrial action was necessary if a pay system which was "fair" to teachers "everywhere" was implemented.