EMMA BATHA SEXUAL harassment and online sexual abuse has become "normalised" in English schools, inspectors have said, with some girls contacted by up to 11 boys a night asking for nude or semi-nude images. Nine in 10 schoolgirls interviewed by education inspectors said sexist name-calling and being sent explicit pictures or videos happened "a lot" or "sometimes". Pressure to send nude pictures was also far more prevalent than adults realised, education watchdog Ofsted said in a report as it called for urgent action to tackle the problem. The chief inspector of the Office for Standards in Education (Ofsted), which inspects…