Carbon Dioxide Exercise

In this activity, students work in groups, plotting carbon dioxide concentrations over time on overheads and estimating the rate of change over five years. Stacked together, the overheads for the whole class show an increase on carbon dioxide over five years and annual variation driven by photosynthesis. This exercise enables students to practice basic quantitative skills and understand how important sampling intervals can be when studying changes over time. A goal is to see how small sample size may give incomplete picture of data.

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Randy Richardson
SERC - Starting Point Collection
Activity takes at least one class period. It requires overhead projector and transparency sheets to project compiled data sheets.

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Teaching Tips

Teaching Tips

All relevant data is given in the activity.

Requires overhead projector and transparency sheets to project compiled data sheets.

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