Curated OER
ExplorA-Pond:4th Grade Perimeter Estimation
Fourth graders visit a real pond. They mark the pond's curvilinear perimeter using string. They measure the string to find the actual perimeter of the pond.
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Into the Pond
Seventh graders use a pond to explore macroinvertebrates and other organisms. They use a dichotomous key to classify the organisms and maintain a journal recording their findings.
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The Great Pollinators
Students discover the reproductive parts of a plant. In this biology lesson, students identify and categorize several different plants they dissect in class. Students record their information using a data chart.
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Missing Macroinvertebrates
Students investigate the concept of a macroinvertebrate. They observe the presence of increases or decreases in population in order to test for factors that contribute to the extinction of a species. Students predict the likelihood of...
Curated OER
Comparative Stream Quality
Students examine water quality on a nearby stream. They collect water samples and test for various factors, including any contamination from the treatment plant, and present their information in a Powerpoint presentation.