One of the kindest things an adult can do for a Virgo child is to be patient and just keep answering those questions. Essentially, the Virgo child is trying to put together the pieces of the puzzle of life to make a coherent and understandable whole. Because of this, he will assign particular importance to details, which are essential to putting together the whole picture. You can help him by discussing why his assumptions didn't work and then giving him more information. You help to build the larger picture for him and, ultimately, to build the higher mind.
Time is also likely to be very important to the Virgo child.
This is the child who has difficulty having fun at the park if she knows she's going to a movie later in the day. She will be worrying that you won't make it to the movie because of leaving the park too late. Therefore, as soon as she can tell time, buy her a watch, especially one with an alarm. This will save the sanity of both parents and child. Also, buying a Virgo child a calendar will help her organize her days and plan ahead.