The Blackboard Winslow Homer (1836-1910)

The picture has something of this: wear, people, portrait, school, education, lid, woman, room, veil, outfit, facial expression, child, footwear, pants, recreation, retro, necklace.
Perhaps it’s a painting of a woman standing in front of a chalkboard with a chalkboard in the back of it and writing on the chalkboard behind her.