Assessment
Remember that at this point in the Unit it is okay for students to have many unanswered questions and incorrect ideas. It is important that they are able to describe the organic matter pyramid as a pattern in ecosystems, but they should not be expected to fully explain it at this point. Use the 2.3 Assessing the 2.3 Evidence-Based Arguments Tool for the Meadow Simulation to get a sense for where students are in their ability to identify the main pattern in this unit: the organic matter pyramid.