3rd graders make this neat-o print project. We talked about raised surfaces and additive printmaking, also the primary colors. The first part is gluing the string on. I usually have the kids do this towards the end of the first class, then the next time they come to class it's dry and ready to print. We talk about brayers since it's a new tool for the kids. Basically students choose 2 primary colors, roll on the paint, print and do again with the second color. Results are great!