The Wetlands MEL
Below are links to resources that will help students use the Wetlands MEL and learn more about the competing views of wetlands.
This article provides an introduction to the Wetlands MEL plus suggestions from classroom use including implementation advice, insights into the lines of evidence that challenge students' thinking, and the rationale for using MEL diagrams to address socio-scientific issues that focus on value to society.Wetlands: Good or Bad? (Acrobat (PDF) 388kB Jun4 18)
Next Generation Science Standards Performance Expectations
HS-ESS3-5: Earth and Human Activity
- Create a computational simulation to illustrate the relationship among the management of natural resources, the sustainability of human populations, and biodiversity.
HS-ESS3-4: Earth and Human Activity
- Evaluate or refine a technological solution that reduces impacts of human activities on natural systems.
Model A: Wetlands provide ecosystem services that contribute to human welfare and help sustain the biosphere.
Model B: Wetlands are a nuisance to humans and provide little overall environmental benefit.
- Wetlands Model Plausibility Ratings (Acrobat (PDF) 140kB Jun4 18)
- Wetlands MEL – Diagram (Acrobat (PDF) 26kB Feb8 21)
- Explanation Task (Acrobat (PDF) 213kB May17 21)
Lines of Evidence
Evidence #1: Wetlands play a role in the global cycles of carbon, nitrogen, and sulfur. Wetlands change these nutrients into different forms necessary to continue their global cycles.
Evidence #2: Flooding is a natural occurrence in low-lying areas and wetlands are places where floodwaters can collect.
Evidence #3: Wetlands contribute 70 percent of global atmospheric methane from natural sources.
Evidence #4: Many wetlands are located in rapidly developing areas of the country.
- Wetlands MEL – Evidence Texts BW (Acrobat (PDF) 514kB Jun4 18)
- Wetlands MEL – Evidence Texts Color (Acrobat (PDF) 410kB Jun4 18)
This Plausibility Ranking Task (PRT), which may be completed prior to using any MELs, helps students to understand the role of evidence in supporting or refuting models.
- Plausibility Ranking Task (Acrobat (PDF) 20kB Feb8 21)
The Google Drive folder below contains MEL resource documents in the Google formats. In order to maximize the flexibility of our activities, the MEL Project Team wanted to make more resources compatible with virtual settings. We have made our MEL scaffolds available in Google formats, so that they can be copied, modified, and uploaded more easily on a variety of platforms and devices. Please note that to access all the materials for each MEL scaffold, you will need a Google account. View the README file first.
- README First Instructions & FAQ (Acrobat (PDF) 70kB May24 21)
- Virtual Wetlands MEL Resource Documents in Google Drive
Wetlands Protection and Restoration, helps individuals learn about wetlands, understand the science of wetlands, find out how the EPA, state, and tribal government efforts are protecting wetlands and how individuals can become involved in preserving this natural resource.