That's Mrs. Elrod helping the girls make their paper airplanes; three years ago, she was Jessica's first grade teacher:
(She was trying to make the Eiffel Tower, but it wouldn't stand up.)
Jessica is the Frank Lloyd Wright of toothpick-and-marshmallow design:
This stack of books wasn't part of any STEAM activity, I just liked the looks of it. Coincidentally, this classroom is Ms. Redd's, Elyse's Kindergarten teacher, though she was in another room tonight.