On Monday’s INSET day we spent time considering the extremely well respected research of Professor John Hattie, based at the University of Auckland in New Zealand. One of his key works of research was entitled ‘Visible Learning’ – a meta analysis which reflected 15 years’ research and synthesised over 800 meta-analyses relating to the influences on achievement in school-aged students. His research involved many millions of students and represents the largest ever collection of evidence-based research into what actually works in schools to improve learning.