I'm fairly new to teaching and have worked in the private sector on and off for the past 20 years. I was told that in the world of teaching I must tell the HoD if I'm applying for a job in another school! This is very strange to me and I'm not sure it's even true. If I don't get the job, everybody then knows I want to leave... awkward. Is this really how it must be done or is this more pressure to never leave? Thanks for your advice!