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New resources in DLESE

Time period: (31 resources)

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New: May 09, 2016 
This three-lesson kit introduces random sampling, one of the key concepts employed by scientists to study the natural environment, including microbial communities. In Lesson 1, students study the abundance and diversity of marine microbes. Colored beads in a bag represent different species of microbes, and the bag itself represents the ocean... Full description.
New: May 09, 2016 
Marine debris is an environmental problem of global importance, enlisting the concern and action of scientists, policy makers, as well as the general public. This three-lesson kit focuses primarily on plastic marine debris. Students critically examine data and samples and take part in activities that explore the causes, geographical distribution, and biological impacts of marine debris... Full description.
New: May 09, 2016 
This kit explores plankton and their global importance through four lessons and an optional extension activity. Plankton are tiny plants (phytoplankton) and animals (zooplankton) that are incapable of swimming against major currents in the ocean. In Lesson 1 (40 minutes), students learn about plankton through a narrated PowerPoint presentation and investigate and identify various phytoplankton... Full description.
New: May 09, 2016 
The Animal Diversity Web is an online database and encyclopedia of animal natural history, built through contributions from students, photographers, and many others. It is a rich and flexible resource designed both as an encyclopedia for exploring biodiversity and for use in formal, inquiry-based education... Full description.
New: May 09, 2016 
Though intended primarily to serve grades preK-12,and to be available as a resource for teachers and parents anyone is welcome to use Ask A Biologist. Life-long learners may also enjoy many of the content areas on the website. A Teacher Toolbox page provides ideas for teaching a wide variety of topics in biology... Full description.
New: May 06, 2016 
Avida-ED is an educational application developed for undergraduate biology courses to help students learn about evolution and scientific method by allowing them to design and perform experiments to test hypotheses about evolutionary mechanisms using evolving digital organisms. The curriculum page contains peer-reviewed model lessons, including in-class, homework and lab exercises, that instructors may download and modify for their own classes... Full description.
New: May 06, 2016 
Students explore how the basic principles of evolution can be used to produce a better vehicle using web-based software. The program, BoxCar2D, allows the user to observe evolution in action with cars in a virtual environment and design vehicles to move over a variety of 2-dimensional landscapes... Full description.
New: May 06, 2016 
In this lesson students will investigate the biological processes associated with hypoxia, as well as how human activities impact its severity. Students add fertilizer to pond, river, or estuary water and compare it to a control treatment to simulate how algal blooms and hypoxia occur in bodies of water... Full description.
New: May 06, 2016 
This exercise demonstrates how environmental changes can create a "habitat squeeze" for aquatic organisms. Students investigate how physical factors influence where an organism can live and how environmental changes can lead to a decrease in the amount of suitable habitat available to aquatic organisms... Full description.
New: May 06, 2016 
This poster summarizes the field of microbial oceanography; the study of the abundance, distribution, growth, metabolism, and diversity of microbes in the marine environment, from coastal regions to the open ocean and from the equator to the poles. Understanding the roles that microbes play in the cycling of nutrients in the ocean is a key component of microbial oceanography... Full description.
New: May 06, 2016 
This two-lesson kit familiarizes students with the causes and consequences of ocean acidification: the process by which our ocean is becoming increasingly acidic. Briefly, ocean acidification is caused by increasing atmospheric concentrations of CO2, some of which dissolves in the ocean and forms an acid... Full description.
New: Apr 27, 2016 
This 6-week unit is designed as a whole-class experiment; students work in teams to grow a selected strain of Brassica rapa from seed to seed, and examine plant traits as they develop over the course of a life cycle. Plants are grown in populations large enough so the variation of traits within a population can be documented and analyzed... Full description.
New: Apr 27, 2016 
This module is framed as a challenge to cause and explain the most extreme bending in celery petioles (stalks), designed as two guided inquiries and an open inquiry with introductory and concluding class discussions. In the introductory discussion, students imagine a real world scenario about preparing celery the day before a party... Full description.
New: Apr 27, 2016 
This 2-week or longer investigation can be adapted to a variety of levels, depending on which resources fit the students. Leaves are the primary photosynthetic organs in plants. Much of the internal volume of a leaf consists of air spaces that are necessary for gas exchange. The principle of leaf disk flotation is to remove the air from these intercellular spaces, a process called infiltration, and replace it with a bicarbonate solution that serves as a source of CO2... Full description.
New: Apr 27, 2016 
This 4-8 week module is designed as a whole-class experiment. Students work in teams to understand genotypic variation among recombinant inbred lines (RILs) of the model organism Arabidopsis thaliana. Seeds are used from two parent lines, Columbia and Landsberg, as well as numerous recombinant inbred lines (RILs) developed by crossing the parent lines... Full description.
New: Apr 27, 2016 
The Tree of Life Web Project (ToL) is a collaborative effort of biologists and nature enthusiasts from around the world. On more than 10,000 World Wide Web pages, the project provides information about biodiversity, the characteristics of different groups of organisms, and their evolutionary history (phylogeny)... Full description.
New: Apr 27, 2016 
Actionbioscience.org is a non-commercial, educational web site created to promote bioscience literacy by examining issues that will: motivate the public to play an active role in bioscience education, show how developments in bioscience research can affect everyone, promote an understanding of biogeography and the biodiversity of life, engage the public to reflect on the relationship between human activity, and the natural course of evolution, promote global ecological awareness, advance formal and informal bioscience education, and encourage students to pursue studies in the biosciences... Full description.
New: Apr 26, 2016 
This is a simple model of population genetics. There are two populations, the REDS and the BLUES. Each has settable birth rates. The reds and blues move around and reproduce according to their birth rates. When the carrying capacity of the terrain is exceeded, some agents die (each agent has the same chance of being selected for death) to maintain a relatively constant population... Full description.
New: Apr 26, 2016 
This project models a classic example of natural selection - the peppered moths of Manchester, England. The peppered moths use their coloration as camouflage from the birds that would eat them. (Note that in this model, the birds act invisibly.) Historically, light-colored moths predominated because they blended in well against the white bark of the trees they rested on... Full description.
New: Apr 26, 2016 
The interactive demonstrates a very simple model of tree ring growth. A specimen tree is provided and the goal is to figure out how temperature and precipitation varied during each year of the tree's life by selecting the correct temperature and precipitation to match your diagram with the specimen... Full description.
New: Apr 26, 2016 
The amount of carbon dioxide (CO2) in Earth's atmosphere has changed over time. In the distant past, natural phenomena (such as volcanic eruptions) altered the amount of CO2 in our planet's air. During the past couple of centuries, humans have influenced CO2 levels by burning large amounts of fossil fuels... Full description.
New: Apr 26, 2016 
PlantingScience is a learning community where scientists provide online mentorship to student teams as they design and think through their own inquiry projects. Engaging in the science process and becoming familiar with science practices enhances science learning. The ability to collaborate, discuss, and reflect with scientists and peers opens new doors to motivate students, and builds necessary pathways for 21st century skills... Full description.
New: Apr 25, 2016 
The School Water Pathways project is a weeklong inquiry-based module for middle and high school students organized using the 5E educational model. It begins by engaging students in the question "How much water falls on our schoolyard during a year and where does it go?" In order to answer this question, the students need to quantitatively evaluate the pathways water takes within the limited area of the school property... Full description.
New: Apr 25, 2016 
This lesson introduces students to landscape change and potential impacts on biological communities. Using pairs of current and historical satellite images in Google Earth, students explore landscape change over time in variety of U.S. and international settings and predict potential effects on associated plant and animal communities... Full description.
New: Apr 25, 2016 
Through spatial and graphical analysis of bird populations on a fictional island, students learn the meaning of biodiversity, species richness, endemism, and abundance. With the teacher acting as a facilitator, students use an interactive PDF map to explore various ways to represent and compare biodiversity across ecoregions... Full description.
New: Apr 25, 2016 
In this lab activity, students use brine shrimp as a proxy for krill to study how environmental factors impact behavioral responses of krill in the unique environment of Antarctica. Full description.
New: Apr 25, 2016 
This project develops a digitally-based instructional program that contains data-rich case studies and visualization activities, as well as a visual library as a resource for grade 7-12 teachers and students. The program is organized as a series of activities that moves scientifically from climate, to climate variability, to climate change... Full description.
New: Apr 25, 2016 
The CLEAN Collection is a hand-picked and rigorously reviewed collection of educational resources aligned with the Climate Literacy and the Energy Literacy frameworks, and the Next Generation Science Standards. The review process engages scientists and educators in vetting each resource for scientific accuracy, pedagogic effectiveness and usability... Full description.
New: Apr 25, 2016 
In this activity students learn about different eco-climatic regions in the United States, and research how different plant species within those regions may be affected by climate change. Students explore how changes in climate are affecting the region and then predict how these changes may affect their selected plant species... Full description.
New: Apr 25, 2016 
This suite of activities is designed to engage learners in climate science through an ongoing Arctic research project. These materials were designed as the Broader Impacts portion of the NSF proposal ?Surface Energy Budgets at Arctic Terrestrial Sites: Quantifying Energy and Momentum Fluxes and their Associated Physical Processes?, studying analysis of existing data from Arctic terrestrial stations with multi-year measurements of the surface energy budget, clouds, soil temperature profiles, and basic meteorological measurements... Full description.
New: Apr 22, 2016 
In this three-day mini-unit, students will be introduced to scientific arguments as the way that we answer questions in science. Through reading about and discussing a socioscientific issue, they will learn that scientific arguments are useful in our day-to-day lives beyond the science classroom... Full description.