These two lessons (Chapter 2 Lesson 4 and Lesson 5) are part of a unit developed by the American Museum of Natural History, the Lawrence Hall of Science SEPUP Program, and the University of Connecticut. The unit follows the 5E model (Engage, Explore, Explain, Elaborate, and Evaluate) to help engage students in making sense of the cycle of matter and flow of energy in an ecosystem. In the previous lesson (2.3) students learn that matter cycles between biotic and abiotic components. In these two lessons, students continue to build on this understanding and add the concept of energy flow to their food web model. Students obtain information by reading scientific findings from the Student Book, track the direction and quantity of energy flow using energy units, and revise their initial model. Students also revisit the Anticipation Guide from the previous lesson to reflect on how their thinking has changed.
The Teacher Guide, Student Book, and student handouts/worksheets for this unit can be downloaded in a zip file from the Achieve website Quality Examples of Science Lessons and Units.