This is a hands on project where students simulate predator-prey relationships in an ecosystem of their choice. It's very engaging and it's typically done in groups of 2 or 3 students over the course of about 3 classes. This project involves a wonderful blend of art, literacy, numeracy, and science. Students get to be creative in designing their ecosystem. They get to do simulate the ecosystem in a board game type way. They record quantitative information and display it visually in a graph, and write a paragraph about what the ecosystem that they've made entirely by themselves.