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Erosion in a River
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Formative assessment questions using a classroom response system ("clickers") can be used to reveal students' spatial understanding.
Students are shown these diagrams and instructed to "Click in the river where you expect to find the greatest rate of erosion along the river bed."
A follow-up question asks students to "Click in the river where you expect to find the fastest moving water."

(Note: this resource was added to OER Commons as part of a batch upload of over 2,200 records. If you notice an issue with the quality of the metadata, please let us know by using the 'report' button and we will flag it for consideration.)

Subject:
Biology
Life Science
Material Type:
Activity/Lab
Assessment
Provider:
Science Education Resource Center (SERC) at Carleton College
Provider Set:
Teach the Earth
Date Added:
09/28/2022
Erosion of the Grand Canyon
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Students estimate the volume of the Grand Canyon to calculate the average rate of erosion of the canyon, assuming the canyon began to form approximately 6 million years ago. They then find out how much sediment the Colorado River is actually carrying, in cubic feet per year, and compare that to their calculated value. In the process of calculating the rate of erosion, they face multiple unit conversions. I also challenge them to convert their answer into units they can visualize, such as Olympic swimming pools of sediment per day.

(Note: this resource was added to OER Commons as part of a batch upload of over 2,200 records. If you notice an issue with the quality of the metadata, please let us know by using the 'report' button and we will flag it for consideration.)

Subject:
Biology
Life Science
Material Type:
Activity/Lab
Provider:
Science Education Resource Center (SERC) at Carleton College
Provider Set:
Teach the Earth
Date Added:
09/01/2022
Establishing relevance as a way to motivate introductory students
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Introduction to Geology students are asked to write a two page (5-6 paragraph) editorial that addresses what geology is and why it is important to society. To gather the information for their editorial, students have to interview at least five individuals (two of whom have to be professionals or faculty members), and consult the mission statements and goals of professional geology organizations (i.e. AAPG, AGU, GSA, SEPM, etc.) Students then synthesize their research and construct a well-written editorial with appropriate citations that will either explain, persuade, criticize, or praise. In completing the assignment, students not only better understand why it is good to study geology, but also have an appreciation for the scope and content of an Intro to Geology course.
Teaching Tips
Adaptations that allow this activity to be successful in an online
environment
I have not used this activity in an online environment, although students in my face-to-face class submit their assignment online through learning management software (i.e. BlackBoard, Desire2Learn, etc.).

Elements of this activity that are most effective
This is effective because it requires that students become active in the learning process, and although the writing is minimal, they have to really pay attention to their wording, point of view, and purpose. Moreover, when students interview professionals, other faculty, their parents, or friends, they are often engaged in interesting conversations that provide important insights. I have found that this helps motivate students and excites them about the content of the course.

Recommendations for other faculty adapting this activity to their
own course:
I recommend that other faculty use the content of the editorials periodically by referring back to student responses throughout the duration of their courses. It helps draw students back into the course, and helps connect them to why they are studying geology in the first place. In years when written work are less than satisfactory, I often require students to swap editorials and provide peer critiques. This usually helps students who struggle with their writing.

(Note: this resource was added to OER Commons as part of a batch upload of over 2,200 records. If you notice an issue with the quality of the metadata, please let us know by using the 'report' button and we will flag it for consideration.)

Subject:
Biology
Life Science
Material Type:
Activity/Lab
Homework/Assignment
Provider:
Science Education Resource Center (SERC) at Carleton College
Provider Set:
Teach the Earth
Date Added:
03/27/2020
Estimating Areal Rainfall in the Lake Whatcom Watershed
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The learning objectives for this GIS exercise are to 1) understand rainfall spatial variability and how to account for it when making areal-rainfall estimates, and 2) learn how ArcGIS can be used as a tool to determine areal averages, and 3) compare the advantages and drawbacks of the various techniques.

(Note: this resource was added to OER Commons as part of a batch upload of over 2,200 records. If you notice an issue with the quality of the metadata, please let us know by using the 'report' button and we will flag it for consideration.)

Subject:
Biology
Earth and Space Science
Hydrology
Life Science
Material Type:
Activity/Lab
Provider:
Science Education Resource Center (SERC) at Carleton College
Provider Set:
Teach the Earth
Date Added:
08/27/2019
Estimating Discharge from Ares Vallis Using Pathfinder Images and MOLA Topography
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On July 4th, 1997, Mars Pathfinder landed at the mouth of Ares Vallis, a large channel that drains into the Chryse Planitia basin. While there remains a great deal to debate about the origin of the channels, one of the leading hypotheses at present is the idea that these features are the result of catastrophic flooding. If this is correct, then the plains where Pathfinder landed may be rich in debris eroded out of the Martian highlands across which the Ares Vallis channel passes, providing a golden combination -- a relatively safe landing site which still provides access to a wide variety of different rock types. [If you would like to learn more about the many Pathfinder results, explore the April, 1999 and January, 2000 issues of the journal Journal of Geophysical Research -- Planets (the green one) in the library.]

For the sake of this lab assignment you will hypothesize that the Ares Vallis and associated deposits were indeed produced by catastrophic flooding, and will use the information at your disposal to learn all you can about the putative flooding event.

(Note: this resource was added to OER Commons as part of a batch upload of over 2,200 records. If you notice an issue with the quality of the metadata, please let us know by using the 'report' button and we will flag it for consideration.)

Subject:
Biology
Earth and Space Science
Hydrology
Life Science
Mathematics
Measurement and Data
Statistics and Probability
Material Type:
Activity/Lab
Provider:
Science Education Resource Center (SERC) at Carleton College
Provider Set:
Teach the Earth
Date Added:
09/20/2022
Estimating Exchange Rates of Water in Embayments using Simple Budget Equations.
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Simple budgets may be used to estimate the exchange of water in embayments that capitalize on the concept of steady state and conservation principals. This is especially true for bays that experience a significant exchange of freshwater. This exchange of freshwater may reduce the average salt concentration in the bay compared to seawater if it involves addition of freshwater from rivers, R, and/or precipitation, P. Alternatively, it may increase the average salt concentration in the bay compared to seawater if there is relatively little river input and high evaporation, E. Since freshwater input changes the salt concentration in the bay, and salt is a conservative material, it is possible to combine two steady state budgets for a bay, one for salt and one for water, to solve for the magnitude of the water flows that enter and exit the bay mouth.
Students will make actual calculations for the inflow and outflow of water to Puget Sound, Washington and the Mediterranean Sea and compare them to actual measured values.

(Note: this resource was added to OER Commons as part of a batch upload of over 2,200 records. If you notice an issue with the quality of the metadata, please let us know by using the 'report' button and we will flag it for consideration.)

Subject:
Biology
Chemistry
Life Science
Mathematics
Measurement and Data
Physical Science
Statistics and Probability
Material Type:
Activity/Lab
Provider:
Science Education Resource Center (SERC) at Carleton College
Provider Set:
Teach the Earth
Date Added:
11/24/2020
Estimating GPS Positional Error
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After instructing students on basic receiver operation, each student will make many (10-20) position estimates of 3 benchmarks over a week. The different benchmarks will have different views of the skies or vegetation cover. Each student will download their data into a spreadsheet and calculate horizontal and vertical errors which are collated into a class spreadsheet. The positions are sorted by error and plotted in a cumulative frequency plot. The students are encouraged to discuss the distribution, sources of error, and estimate confidence intervals. This exercise gives the students a gut feeling for confidence intervals and the accuracy of data. Students are asked to compare results from different types of data and benchmarks with different views of the sky.
Uses online and/or real-time data
Has minimal/no quantitative component
Addresses student fear of quantitative aspect and/or inadequate quantitative skills
Addresses student misconceptions

(Note: this resource was added to OER Commons as part of a batch upload of over 2,200 records. If you notice an issue with the quality of the metadata, please let us know by using the 'report' button and we will flag it for consideration.)

Subject:
Biology
Life Science
Material Type:
Activity/Lab
Provider:
Science Education Resource Center (SERC) at Carleton College
Provider Set:
Teach the Earth
Date Added:
08/12/2019
Estimating Greenhouse Gas Offsets as Part of Shoreline Community College's Greenhouse Gas Inventory
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This is a service-learning project for students in Geography 204 (Weather, Climate and Ecosystems). Students will assess prior estimates of carbon offsets associated with plant and soil biomass on their college campus; and as a result, they will understand the complexity of measuring the complex sources of carbon emissions and offsets; address the challenges of coordinating data collection and field measurement; and realize importance of estimation in public policy contexts.

(Note: this resource was added to OER Commons as part of a batch upload of over 2,200 records. If you notice an issue with the quality of the metadata, please let us know by using the 'report' button and we will flag it for consideration.)

Subject:
Applied Science
Biology
Earth and Space Science
Environmental Science
Life Science
Mathematics
Physical Geography
Material Type:
Activity/Lab
Provider:
Science Education Resource Center (SERC) at Carleton College
Provider Set:
Teach the Earth
Date Added:
11/14/2018
Estimating OUR Carbon Footprint
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Description here.

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Subject:
Applied Science
Biology
Health, Medicine and Nursing
Life Science
Mathematics
Measurement and Data
Statistics and Probability
Material Type:
Activity/Lab
Provider:
Science Education Resource Center (SERC) at Carleton College
Provider Set:
Teach the Earth
Author:
Ben Galluzzo
Jean McGivney-Burelle
Rikki Wagstrom
Date Added:
05/19/2021
Estimating Primary Production in the Oceans from Satellite Data
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In this computer lab, students use satellite imagery, daylength information, and phytoplankton physiology models to calculate annual primary production for an assigned ocean region.

Satellite data is obtained from the NASA Earth Observation website. Students use the analysis tool to determine chlorophyll concentration and sea surface temperature. They also receive a day-length calculator and are asked to model light transmission through the water column. Using step-by-step instructions and proviede equations relating phytoplankton physiology to irradiance and temperature students calculate carbon uptake at discreet locations in the water column. The second half of the exercise involves scaling up to the entire water column, region, and season. Students present their work to the class and evaluate their result using scientific literature. Differences between regions are then discussed by the class.

(Note: this resource was added to OER Commons as part of a batch upload of over 2,200 records. If you notice an issue with the quality of the metadata, please let us know by using the 'report' button and we will flag it for consideration.)

Subject:
Biology
Chemistry
Earth and Space Science
Life Science
Mathematics
Measurement and Data
Oceanography
Physical Science
Material Type:
Activity/Lab
Data Set
Lesson Plan
Provider:
Science Education Resource Center (SERC) at Carleton College
Provider Set:
Teach the Earth
Date Added:
06/16/2022
Estimating Valley Fill Thickness with a Gravity Survey
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Previous mapping exercises have dealt with well-exposed rocks, but this particular area runs into a problem with a thick valley fill on bedrock. We have some good estimates of the density contrast for the valley fill and bedrock. A prelab exercise asks the students to assign realistic densities to the units. In class we develop a model for the expected anomaly size for different thickness, then we go out and measure the anomaly and estimate the thickness.
Uses online and/or real-time data Has minimal/no quantitative component
Addresses student fear of quantitative aspect and/or inadequate quantitative skills
Uses geophysics to solve problems in other fields

(Note: this resource was added to OER Commons as part of a batch upload of over 2,200 records. If you notice an issue with the quality of the metadata, please let us know by using the 'report' button and we will flag it for consideration.)

Subject:
Biology
Life Science
Material Type:
Activity/Lab
Provider:
Science Education Resource Center (SERC) at Carleton College
Provider Set:
Teach the Earth
Date Added:
08/12/2019
Estimating flow through an earthen dam
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Students make measurements of dam dimensions and water levels above and below a small, accessible earthen dam. They assess the soil texture in the field. They follow up by developing a simple flow net and estimating seepage rate as part of a problem set. They discuss their assumptions and the likely sources and magnitude of error.

(Note: this resource was added to OER Commons as part of a batch upload of over 2,200 records. If you notice an issue with the quality of the metadata, please let us know by using the 'report' button and we will flag it for consideration.)

Subject:
Biology
Earth and Space Science
Hydrology
Life Science
Physical Geography
Material Type:
Activity/Lab
Provider:
Science Education Resource Center (SERC) at Carleton College
Provider Set:
Teach the Earth
Date Added:
08/06/2019
Estuarine Salinity Distribution and Classification Project
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This is a field and lab activity in which students collect CTD data in a local estuary, contour the data, and analyze the results to classify the estuary based on standard classification schemes.

(Note: this resource was added to OER Commons as part of a batch upload of over 2,200 records. If you notice an issue with the quality of the metadata, please let us know by using the 'report' button and we will flag it for consideration.)

Subject:
Biology
Life Science
Material Type:
Activity/Lab
Provider:
Science Education Resource Center (SERC) at Carleton College
Provider Set:
Teach the Earth
Date Added:
08/09/2019
Ethical Dilemmas of Backcountry Skiing and Guiding
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This case study explores decision-making in high risk settings such as back-country skiing. The scenarios presented have application to many field-based studies where of physical injury or even death may be an outcome in circumstances that have known predictable risks that must be evaluated. Go? or No Go? What factors must be considered to ensure the safety of the group while achieving desired objectives? What are the ethical responsibilities of group leaders and group members in high-risk situations? Recommended readings on high-risk decision making are provided.

(Note: this resource was added to OER Commons as part of a batch upload of over 2,200 records. If you notice an issue with the quality of the metadata, please let us know by using the 'report' button and we will flag it for consideration.)

Subject:
Biology
Life Science
Material Type:
Activity/Lab
Case Study
Provider:
Science Education Resource Center (SERC) at Carleton College
Provider Set:
Teach the Earth
Date Added:
08/17/2022
Ethics, Gender, and Climate Change
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The purpose of the assignment is twofold: first, to expose students to what is sometimes called a "feminist" or "care" perspective in ethics. The second is for students to apply these abstract ideas in ethics to the very real and complex issues relating to climate change in environmental ethics.

(Note: this resource was added to OER Commons as part of a batch upload of over 2,200 records. If you notice an issue with the quality of the metadata, please let us know by using the 'report' button and we will flag it for consideration.)

Subject:
Agriculture and Natural Resources
Applied Science
Biology
Environmental Science
Environmental Studies
Life Science
Material Type:
Activity/Lab
Provider:
Science Education Resource Center (SERC) at Carleton College
Provider Set:
Teach the Earth
Date Added:
08/09/2022
Ethics and Paleontology: Dinosaur Dilemmas
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Dinosaur fossils capture the interest of students and the public, but their study, collection, and disposition often engender signficant highly-publicized controversy. As such, ethical dilemmas emerge around fossil discoveries in the realms of scientific research, including professional and personal conduct, educational and economic roles of museums, landowner rights, fossils as commodities in a capitalist economy, and science journalism. This project uses the controversy over a highly-publicized pair of dinosaur skeletons collected from private land to examine the myriad complexly intertwined ethical issues that arise from the attempt to sell these fossils at public auction for private financial benefit. Students planning careers in paleontology and geology need to be aware of these types of controversies and the ethical choices they will face.

(Note: this resource was added to OER Commons as part of a batch upload of over 2,200 records. If you notice an issue with the quality of the metadata, please let us know by using the 'report' button and we will flag it for consideration.)

Subject:
Biology
Life Science
Material Type:
Activity/Lab
Case Study
Provider:
Science Education Resource Center (SERC) at Carleton College
Provider Set:
Teach the Earth
Date Added:
11/28/2021
Ethics in Publishing
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This collection of case studies deals with ethics involved in publishing research in peer-reviewed scientific journals. Often, graduate students learn about these ethics informally as they go along and are often unaware that individual journals often have their own formal policies. This activity is intended to present students with some scenarios of "what would you do?", as well as guide them to find and read ethics policies of at least 2 scientific journals.

(Note: this resource was added to OER Commons as part of a batch upload of over 2,200 records. If you notice an issue with the quality of the metadata, please let us know by using the 'report' button and we will flag it for consideration.)

Subject:
Biology
Life Science
Material Type:
Activity/Lab
Case Study
Provider:
Science Education Resource Center (SERC) at Carleton College
Provider Set:
Teach the Earth
Date Added:
11/20/2021
Ethnographic Methods for Community Visioning
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This project involves students in substantial community-based ethnographic research. Working cooperatively together as a consultancy team, the students learn to use ethnographic and other research methods. They also learn to empower and give voice to various stakeholders and to assemble and synthesize data for a formal report.

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Subject:
Agriculture and Natural Resources
Biology
Environmental Studies
Life Science
Material Type:
Activity/Lab
Provider:
Science Education Resource Center (SERC) at Carleton College
Provider Set:
Teach the Earth
Date Added:
07/06/2017
Eukaryotic microbiology
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This chapter details cell-cell communication highlighting studies performed in the model organism Dictyostelium discoideum. Topics covered include signaling molecules, cell surface receptors, and subversion of host cell signaling by pathogens.

Subject:
Biology
Life Science
Material Type:
Reading
Provider:
CSU Extension Office
Date Added:
03/09/2023
Evaluating Rainfall, Landslides, and Weather: Big Sur, California
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This activity leads to understanding common landslide hazards in the area and how they relate to weather patterns and/or local geology.

(Note: this resource was added to OER Commons as part of a batch upload of over 2,200 records. If you notice an issue with the quality of the metadata, please let us know by using the 'report' button and we will flag it for consideration.)

Subject:
Agriculture and Natural Resources
Biology
Earth and Space Science
Environmental Studies
Geology
Life Science
Material Type:
Activity/Lab
Provider:
Science Education Resource Center (SERC) at Carleton College
Provider Set:
Teach the Earth
Date Added:
12/31/2021