A. The distribution and abundance of organisms is determined by the interactions between organisms, and between organisms and the non-living environment.
B. Energy and nutrients move within and between biotic and abiotic components of ecosystems via physical, chemical and biological processes.
C. Human activities and natural events can have profound effects on populations, biodiversity and ecosystem processes.
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STEM Lessons - Model Eliciting Activity
Students will explore and assess the implications various human and environmental factors are having on the yellow-legged frog population in California. Students will use knowledge of percentages to calculate population size and will complete research to explore the affects of human impact on the environment and the process of adaptation through natural and artificial selection.
Model Eliciting Activities, MEAs, are open-ended, interdisciplinary problem-solving activities that are meant to reveal students’ thinking about the concepts embedded in realistic situations. MEAs resemble engineering problems and encourage students to create solutions in the form of mathematical and scientific models. Students work in teams to apply their knowledge of science and mathematics to solve an open-ended problem, while considering constraints and tradeoffs. Students integrate their ELA skills into MEAs as they are asked to clearly document their thought process. MEAs follow a problem-based, student centered approach to learning, where students are encouraged to grapple with the problem while the teacher acts as a facilitator. To learn more about MEA’s visit: https://www.cpalms.org/cpalms/mea.aspx
The Plants versus Pollutants MEA provides students with an open-ended problem in which they must work as a team to design a procedure to select the best plants to clean up certain toxins. This MEA requires students to formulate a phytoremediation-based solution to a problem involving cleaning of a contaminated land site. Students are provided the context of the problem, a request letter from a client asking them to provide a recommendation, and data relevant to the situation. Students utilize the data to create a defensible model solution to present to the client.
Model Eliciting Activities, MEAs, are open-ended, interdisciplinary problem-solving activities that are meant to reveal students’ thinking about the concepts embedded in realistic situations. Click here to learn more about MEAs and how they can transform your classroom.
The focus of this MEA is oil spills and their effect on the environment. In this activity, students from a fictitious class are studying about the effects of an oil spill on marine ecosystems and have performed an experiment in which they were asked to try to rid a teaspoon of corn oil from a baking pan filled with two liters of water as thoroughly as possible in a limited timeframe and with limited resources. By examining, analyzing, and evaluating experimental data related to resource usage, disposal, and labor costs, students must face the tradeoffs that are involved in trying to preserve an ecosystem when time, money, and resources are limited.
In this Model-Eliciting Activity (MEA), students will learn about the biomagnification of mercury in aquatic ecosystems.
Model Eliciting Activities, MEAs, are open-ended, interdisciplinary problem-solving activities that are meant to reveal students’ thinking about the concepts embedded in realistic situations. MEAs resemble engineering problems and encourage students to create solutions in the form of mathematical and scientific models. Students work in teams to apply their knowledge of science and mathematics to solve an open-ended problem while considering constraints and tradeoffs. Students integrate their ELA skills into MEAs as they are asked to clearly document their thought processes. MEAs follow a problem-based, student-centered approach to learning, where students are encouraged to grapple with the problem while the teacher acts as a facilitator. To learn more about MEAs visit: https://www.cpalms.org/cpalms/mea.aspx
Original Student Tutorials Science - Grades 9-12
Explore the impact of methylmercury pollution in the Everglades wetland ecosystem.
Student Resources
Original Student Tutorials
Learn how phosphorus pollution can lead to changes in the Everglades.
Type: Original Student Tutorial
Explore the impact of methylmercury pollution in the Everglades wetland ecosystem.
Type: Original Student Tutorial
Lesson Plan
This lesson introduces students to complex systems and to basic concepts from the field of system dynamics that lie at the heart of systems thinking. These concepts include stocks and flows, feedback loops, unintended consequences, and the basic principle that the behavior of complex systems can best be understood by looking at the system as a whole, and specifically by analyzing the system’s underlying structure. The lesson introduces these topics through an immersion in (and a role-play simulation of) the dynamics of urban recycling systems, many of which have been thrown into crisis in the past two years. Through this current-affairs example of complex systems in crisis, we identify some key structural features that help to explain how these systems behave over time. We also discover how well-intentioned action can cause negative unintended consequences when we try to intervene in a complex system without understanding how it operates.
Type: Lesson Plan
Perspectives Video: Experts
Statistical analysis played an essential role in using microgravity sensors to determine location of caves in Wakulla County.
Download the CPALMS Perspectives video student note taking guide.
Type: Perspectives Video: Expert
Do you think you know oil there is to know about human impact on the environment? Let this biologist explain.
Download the CPALMS Perspectives video student note taking guide.
Type: Perspectives Video: Expert
Learn how the Woods Hole Oceanographic Institution experts track oil-soaked sand patties on the Gulf Coast to monitor possible negative environmental impacts from the Deepwater Horizon oil spill.
Download the CPALMS Perspectives video student note taking guide.
Type: Perspectives Video: Expert
Perspectives Video: Professional/Enthusiast
<p>You'll need to bring your computer skills and math knowledge to estimate oil volume and rate as it seeps from the ocean floor. Dive in!</p>
Type: Perspectives Video: Professional/Enthusiast
Tutorial
This lab simulation will allow you to explore how carbon circulates through the environment. Through data collection and analysis, you will experiment with the impact that humans are having on the cycling of carbon and make data based predictions on how these impacts may change environmental outcomes to the year 2100.
Type: Tutorial
Video/Audio/Animation
This lesson introduces students to Green Chemistry, the design of chemical products and processes that reduce or eliminate the use and/or the generation of hazardous substances. Green chemistry is a proactive approach to pollution prevention that teaches chemists how to develop products and materials in a manner that does not use hazardous substances, thus avoiding much waste, hazards and associated costs. The goal of this lesson is to introduce students to the 12 Principles of Green Chemistry and how they relate to a chemical process. These principles provide a framework for scientists, engineers and chemistry students to use when designing new materials, products, processes, and systems. The Principles focus on sustainable design criteria and have proven to be the source of innovative solutions to a wide range of problems. Through this lesson, students will also use weight and measurement to understand the concept of a recipe as it is applied to a chemical process and think critically about that process and how it might be improved. Students will be asked to use a wasteful, inefficient procedure to make glue and be challenged to improve the procedure-during which they will unknowingly use the 12 Principles. Before starting this lesson, students should have been introduced to the periodic table and properties of matter. The estimated time for this lesson is 50-60 minutes.
Type: Video/Audio/Animation
Parent Resources
Perspectives Video: Experts
Do you think you know oil there is to know about human impact on the environment? Let this biologist explain.
Download the CPALMS Perspectives video student note taking guide.
Type: Perspectives Video: Expert
Learn how the Woods Hole Oceanographic Institution experts track oil-soaked sand patties on the Gulf Coast to monitor possible negative environmental impacts from the Deepwater Horizon oil spill.
Download the CPALMS Perspectives video student note taking guide.
Type: Perspectives Video: Expert
Perspectives Video: Professional/Enthusiast
<p>You'll need to bring your computer skills and math knowledge to estimate oil volume and rate as it seeps from the ocean floor. Dive in!</p>
Type: Perspectives Video: Professional/Enthusiast
Perspectives Video: Teaching Idea
Wade into science with students by cleaning up model oil spills!
Download the CPALMS Perspectives video student note taking guide.
Type: Perspectives Video: Teaching Idea