Deirdre,
Stellarium-web.org is the version that works in a browser, would you consider downloading the Stellarium app (which does not require internet once installed) and allowing the children to explore freely?
At BCO we have used it with children from 2nd class up, and for all ages of space enthusiasts at our summer camps. For some children, it is the highlight of their visit as they can ask a question and then explore the tool to find their own answer.
Pointing out cardinal directions and relating them to the position of the Sun in the sky and the time of day is very easy to do with the software.