This conclusion presents some closing thoughts on concepts discussed in this book. It is a fact of life that everyone remembers their best teacher. Churchill once said that, 'Headmasters have powers at their disposal with which Prime Ministers have never yet been invested' and it is true. The government can only control what goes on in classrooms by fooling us into thinking it can. Programme for International School Assessment (PISA) looks more at the real-world application of what has been learned in the classroom across nearly 90 per cent of the world's economies. For example, in 2006 it was the turn of science to be the special focus under the heading, 'Science Competencies for Tomorrow's World'. The second aspect that the Buckingham University report highlights is that it is teachers who have gone through schools-based training who are more likely to remain in the job, compared to those who have gone through a traditional university-based model of teacher training.