Social Studies photo questions

In this activity our teacher placed 12 powerful black and white photos about slaves. She gave each of a pad of sticky notes and we had to write something we thought about the photo whether it be an emotion, statement or question. Then after all of us made it to each photo we set them all we set back down and she asked us questions about the photos that we had just looked at. The questions ranged from, "What photo moved you the most?", or "What do you think these photos are about?" You can use this as an attention getter to warm the students up, a writing prompt or a good way to have the students get emotionally involved with the subject that the teacher is teaching. I can see me using this technique at some point in my career as a teacher.