There were 1046 assaults on South Australian teachers in 2010.
There were 1001 assaults on South Australian teachers in 2009.
144 of the 2011 assaults were classed as "critical" incidents.
764 were classed as "deliberate" acts by students.
298 were listed as assaults at special schools or disability units.
South Australian teachers lodged 46 compensation claims for assaults by students aged between 5 and 15 during 2011.
They lodged 38 claims in 2010.
They lodged 40 claims in 2009.
SA Primary Principals Association president Steve Portlock said teachers were increasingly at risk of harm from students.
Australian Education Union state secretary Correna Haythorpe said to deal with students who have more behavioural needs, teachers must have more support, especially in the form of school counsellors.
"The issue of violence is taken seriously and that is why there are strict guidelines on reporting all incidents," South Australian Education Minister Grace Portolesi said.
SA Secondary Principals Association president Jan Paterson said teachers were often put in harm's way, especially when they became caught in the middle of student disputes.
"From what I hear a lot of the problems arise when teachers try and intervene to prevent things blowing up between students and that then leaves them in the middle," she said.
Opposition spokesman David Pisoni, who obtained the figures through FOI laws, said principals "don't have the authority or resources to implement the tailored responses that are needed".
Five teachers a day assaulted by students, Callie Watson, Adelaide Now, 16 July 2012 : http://www.adelaidenow.com.au/news/south-australia/five-teachers-a-day-assaulted-by-students/story-e6frea83-1226427544788