In addition, the borough set key goals for all schools, giving all pupils targets to hit.
Some pupils were targeted as often as once a week, with one boy alone said to have been abused more than 100 times.
At our school we have put in a lot of time and effort to support pupils through targeted intervention, but for many children extra reading work just doesn't enthuse them and can sometimes have the opposite effect.
Perversely claiming they had exempted the younger pupils and targeted only the older boys because of their closer association with the army, they cynically tried to legitimise killing a 15-year-old as if it was in any way less morally abhorrent than killing a 12-year-old.
Falmer high school in Brighton had its best results the year after it stopped the payments, a fact that the headteacher attributes to a clearer focus on individual pupil targets and support.
For example, studies lead by Shauna L Shapiro of Santa Clara University have found that awareness of one's state of mind can improve coping strategies for dealing with the stress of everyday life, which may benefit students under pressure to attain high grades or teachers targeting ever higher pupil targets.
According to family friends, the Deghayes boys, who were among a tiny minority of Muslim pupils, were mercilessly targeted.
In 2013, Boko Haram targeted pupils in a series of attacks, culminating in the raid in Chibok deep in north-eastern Nigeria in April 2014, in which 276 school girls were kidnapped.
Institutions that have long targeted pupils at fee-paying schools in Britain are beginning to find state schools fertile ground as well.Despite this, most British students are still staying put.
A TTP spokesman told the BBC they had deliberately killed older pupils and not targeted "small children".
