Just in case you’ve ever wanted to know, my middle school art class figured out why Mona Lisa smiles!
I got the original idea here.
Basically, I found some high-resolution pictures of the Mona Lisa online. Cropped her face and hands, reduced them in size, and copied them on our copy machine at the school. Before the assignment, the kids and I went over different things that make us happy, and we made a list. I revealed to them that they were going to have to put Mona Lisa in that situation, and they were pretty excited about it.
Here are some of their finished works: