First, talk about Van Gogh’s STARRY NIGHT, movement, color, strokes, etc. Then talk about the SUN. When done, open the floor to questions:

First Grade Student: “Uh, Mrs. Teixeira? Isn’t that the moon?”
Have Mrs. Teixeira turn and look at painting with surprise. Turn back to the student and say:
Me: “Why yes. That is a moon. That would be why the painting is called Starry NIGHT. Mrs. Teixeira needs A LOT MORE COFFEE.”

Sigh. It really happened.