The document discusses using a project-based learning approach to teach biology. It provides an example project where students create their own ecosystem by designing it and including producers, primary consumers, secondary consumers, and tertiary consumers. They must explain how these organisms interact and present their ecosystem using a poster, PowerPoint, book, or other format. It also includes a rubric to evaluate the projects based on inclusion of different levels of consumers and symbiotic relationships, explanation of food webs using examples, and clarity and understandability of the ecosystem model. References are provided to learn more about project-based learning approaches.