It’s amazing how successful is a train set. All ages, as you can see (that’s 1, 3, 5, 8, 10). Construction & spatial awareness. Problem solving – especially to see how to use every single piece of track. Imagination when it comes to creating ‘the story’ of what’s going on. Co-operation because the kids need to share favourite carriages. And occupational health and safety (Catherine chose not to trip over the network on her early-morning trip to get a drink from the kitchen).