Bollocks. There are a number of factors in any child’s performance. A recent UN study says whether or not a child reads for pleasure is the most reliable indicator of future success, but generally, received wisdom is that it is parental interest in their child’s education that is most important. You can blame an awful lot for the broken education system we have in the UK, but most teachers are beyond reproach, and persecuting them will not improve matters. Show teachers that they are valued and trusted instead, stop driving them toward ridiculous targets and unachievable levels, and allow teachers to do what most of them got into the job to do in the first place: build better futures for the children that they teach.