Three-dimensional Learning Progression In Lesson 5, students consider several real-world situations to apply their understanding of ecosystems and carbon cycling. Thinking about real-world situations will help students apply their knowledge and understand the relevance of this topic. Key Ideas and Practices for Each Activity In Activity 5.1, students are introduced to human managed ecosystems and ecosystem products and services. Students complete a reading about these ideas and then apply them to new ecosystems. In Activity 5.2, students read about one human managed ecosystem and the services and products it provides. They then share with peers to learn about other human managed ecosystems in a jigsaw-style discussion. In Activity 5.3a (1-turtle) or 5.3b (2-turtle), students review what they have learned throughout the unit by creating ecosystem posters focused on tracing matter and energy within an ecosystem. Activity 5.4 includes the unit posttest. As you look at your students’ responses to the posttest questions, consider how well their answers reflect their progress toward understanding ecological matter cycling and energy flow, and answering the Large-Scale Four Questions for a variety of ecosystems. See 5.4 Grading Ecosystems Unit Posttest for assistance in interpreting your students’ responses. Content Boundaries and Extensions
