Mention the teaching of chronology to most infant teachers and their eyes glaze over. Their experience is that it is like picking up mercury with a fork. One minute the children seem to have grasped it, the next it’s gone. They know about the past, but are still putting their chairs on tables ready to go home just after lunchtime. So what are we to do? I suggest that we approach the concept methodically with quite a lot of consolidation, but also a fair amount of ambition.