With the baby coming the Kids have been trying to understand the timing of things. But its hard for younger children to wrap there head around time concepts like 9 months, 40 weeks, 280 days. So I set up a little count down app that tells me us how many days until she will get here. But just being able to give them numbers doesn't really help make the change in time seem more concrete.
So I too a clue from some things I have seen suggested for helping children handle a parent's deployment and we are settling up a jar with 100 marbles in it. And each day they get to take one out. Then they can watch the time actually change see the passing days more clearly.
As the Jar empties we can watch the day we get to meet our new little girl come closer. A concrete physical representation of something that seems so flexible and abstract as time.