In March last year 20,000 school children in the Brazilian city of Vitoria da Conquista had radio tags sewn into their uniforms to help detect truants.
Some teachers and parents hold the negative opinion that many students are so obsessed with network games that they play truant, others even commit a crime for one reason or another.
" Husbands will play the truant, you know. I wish you could tell me of some secret plan that would help me to keep him home at my will in the evenings."