1. Created by: by Alan Bass and Terrie Teegarden, San Diego Mesa College
2. Type of activity: lecture, small group problem solving (paper and pencil)

3. Course level: Beginning Algebra

4. Topic: Linear Modeling

5. Materials: none

6. Time required: 30 to 40 minutes

7. Description: In this activity students will explore levels of Carbon Dioxide (CO2) in the atmosphere over time. There is concern that levels of CO2 are rising; and finding a good mathematical model for CO2 levels is an important part of determining if this is attributable to human technology. Students draw a scatter plot, choose two points to create a linear model for the data, then use the model to make predictions.

8. Implementation notes (follow up/discussion questions, pedagogical recommendations, etc.):

9. Related activities: Environmental Sustainability as a motivating theme

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