An eight-year-old child is to be reported to the Children's Panel following an alleged attack on a head teacher.
A child is to be reported to the Children's Panel
Strathclyde Police said an inquiry was launched after an incident at Pinewood Primary School in Drumchapel.
The head teacher was believed to have required hospital treatment.
Details of the incident came to light as official figures showed an increase in violence, racism and indiscipline in Scottish schools.
A police spokesman said: "A 47-year-old woman was injured following an incident at Pinewood Primary in Drumchapel on Wednesday, 24 November.
"An eight-year-old boy will be the subject of a report to the Children's Panel in connection with the incident."
A Scottish Executive report into teachers' perceptions of indiscipline showed an increase on the last study carried out in 1996.
The study of 1,800 staff found that 79% of secondary school teachers had reported at least one weekly incident of pupils verbally abusing other pupils, which was up 10% since 1996.
It also found that 56% of teachers said pupils had been physically aggressive to other children, which was a 50% rise on eight years ago.
About 11% said pupils racially abused others which was almost double the 1996 figure and 33% said they had witnessed sexual abuse or harassment, which was an increase of 16%.
Teachers also said they had been the subject of abuse, with 2% of secondary school teachers reporting racist abuse, which was up from 0.5%.
Teachers reported an increase in aggression among pupils
The study found 8% reported physical aggression - up from 1% - and verbal abuse was reported by 45% of teachers, up from 27%.
Further to that, 39% of teachers said pupils had been physically destructive, compared to 18% in 1996, while 84% said children persistently broke class rules, as opposed to 72% eight years earlier.
In primary school, 12% of teachers reported sexist abuse or harassment of other pupils, compared to 7% in 1996, and 12% said they or other staff had been subject to verbal abuse, as opposed to 8% eight years ago.
The survey also found that 52% of primary teachers said pupils had made cheeky or impertinent remarks and 78% reported deliberate idleness or avoidance of work.
In both cases this was a rise of 8% between 1996 and 2004.