A new survey of more than 19,000 students indicates more teenage girls do their homework each night than boys.
The survey was commissioned by Auckland University as part of a biennial school census. It involves more than 19,000 students aged between 10 and 18 from 600 schools.
Some 74% of teenage girls said they did their homework on a given night, compared with 61% of boys.
In total, 69% of students said they spent spent an hour and a quarter on average doing their homework.
Some 77% of primary school pupils said they did their homework, spending an average of 53 minutes on it.