Activity 2.4: Organic Carbon Pools in Other in Ecosystems (40 min)

Target Student Performance

Students describe patterns in relationships among mass of populations at different trophic levels in other ecosystems (the organic matter pyramid).

Resources Provided

Recurring Resources


Prepare a computer and projector to display the PPT. Print 1 copy of Big Idea Probe: Wolves and Deer for each student (optional).


1. Use the instructional model to show students where they are in the course of the unit.


During this activity, check to see if students can identify the differences in organic carbon in the ecosystems and understand the idea of carrying capacity.


Divide students up into strategic groups so that they have different ecosystems to compare. Allow them to share their ideas with the class.

Extending the Learning