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Activity 4.3: How Fluxes Change and Photosynthesis Limits (40 min)

Target Student Performance

Students use an online computer model to describe how changes in carbon pools over time depend on the maximum possible rate of photosynthesis in an ecosystem.

Resources You Provide

  • Computer (1 per student of pair of students)

Resources Provided

Setup

Print a copy for each student of 4.3 Computer Model for Changing Fluxes Handout and 4.3 Computer Model for Changing Fluxes Worksheet . Set up a computer and projector for Fluxes Change and Photosynthesis Limits PPT.

Directions

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

Assessment

Use 4.3 Grading the Computer Model for Changing Fluxes Worksheet to grade students' work and get a sense of how they are understanding the pool and flux model.

Differentiation

Have students work in pairs, with each pair using one computer and one worksheet.

Modifications
Extending the Learning