Displays. By which I mean the CHILDREN'S work displayed so that children and/or parents can see it.
Not all nurseries like putting up children's work. A large chain I often work for has a nice new nursery where instead of children's work on boards in the room, they have enormous photos of happy children. I'm talking of 3 foot square! I assume that they feel the artwork done by their users would detract from their corporate image. Maybe they don't value creativity or...no! It's the image thing.
Another nursery had children's work up but no creativity. The only artwork on the walls were large Disney characters, drawn by adults, and covered very carefully with little balls of rolled up coloured tissue paper. They must have spent hours on each one and the nursery must have resembled a third world sweatshop with children rolling thousands of little paper balls. They were also a bit faded and rather dusty and old. That nursery shut down just after I had gone there. Good.
Yet another nursery I was at had MOST of their boards covered in photos of what the children were doing, such as photos of children painting, cooking,dancing etc. Good idea to have a board like that, but not nearly every board in the nursery, and not tiny 6x4 inch photos that the children can't see themselves.
A good nursery values the creativity of the children and wants to display it. The children feel proud that their work is up for all to see and will often point out what they've done. Displays can be reminders of things that have happened, such as a trip to a farm. They could be a starting point for an upcoming topic. They could be used for just about anything with a little imagination, and should be one of the key features of a nursery, not an afterthought. But labels should be spelt right, and borders should be straight, and boards should be changed often. Boards reflect the aspirations, beliefs and the standards of the nursery.
If you're a parent you can judge a nursery by it's boards.