John Hattie has looked at hundreds of studies of teaching and learning to try to find what the evidence shows about which teaching methods have a significant impact on achievement. In these two videos he presents his findings and there are some surprises here. Some governors might find that their pet theory about what makes a good school or what is good teaching is not supported by the evidence.

Part 1: Disasters and below average methods

Part 2: Effective Methods: what really matter