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New resources in DLESE

Time period: (33 resources)

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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.
New: Apr 08, 2016 
This resource includes 11 lessons that guide students through the process of collecting evidence and developing explanations of where the dry matter of plants comes from and of the roles of photosynthesis and respiration in the carbon cycle. Along with the focus on building explanations of these core ideas, the unit explicitly integrates the crosscutting concepts of matter and energy and scale, proportion, and quantity... Full description.
New: Apr 08, 2016 
In this virtual lab students discover and apply principles of genetic inheritance by studying the inheritance patterns of fruit flies. Students order fruit fly mutants from a web merchant, mate the flies in an incubator, anesthetize flies for observation, examine flies under a microscope, and analyze the data from offspring to determine patterns of inheritance... Full description.
New: Apr 08, 2016 
The purpose of this unit is to increase students' ability to apply principles of biodiversity to their observations and reasoning about the natural world, using the freshwater stream ecosystem as the context for learning. This unit focuses on the following principles of biodiversity: organisms vary genetically, thus also vary phenotypically and functionally; ecological communities are constrained and shaped by biotic resources and interactions, abiotic resources and conditions, and dispersal; matter and Energy are finite in space and time, and organisms interact with and impact matter and energy resources... Full description.
New: Mar 30, 2016 
This site offers lesson plans and ideas for implementing phenology data collection in Grades 9-12. Implementing phenology monitoring and Nature's Notebook at the high school level allows students to engage with the content in an experiential way, provides opportunities to do community based projects through partnerships with local organizations, understand the implications of climate change, and engage with scientists performing data analysis... Full description.
New: Mar 30, 2016 
Teaching Issues and Experiments in Ecology (TIEE) is a peer-reviewed web-based collection of ecological educational materials. TIEE is a resource for busy ecology faculty who are looking for new ways to reach their students, or who perhaps want to learn more about teaching and learning. Faculty are encouraged to submit their materials for inclusion in the collection... Full description.
New: Mar 30, 2016 
Elimination of top predators (e.g. wolves) from regions like the Greater Yellowstone Ecosystem leads to changes in prey population density and behavior, as well as overall community structure. This resources addresses how ecosystems change when predators are removed, and what happens in such a system when the predators are restored... Full description.
New: Mar 30, 2016 
In this resource students examine published data that address the ecological consequences of introduced species. Activities engage students in data analysis and hypothesis testing and will increase their understanding of the complexities of ecological phenomena. Case studies include zebra mussels, brown tree snakes, fire ants, and gypsy moths... Full description.
New: Mar 30, 2016 
PRISMS is a collection of reviewed phenomena and representations for use in middle school level teaching and learning. "Phenomena" are real-world objects, systems, and events that provide evidence of key ideas in science. A phenomenon may be experienced first hand or vicariously. "Representations" are diagrams, models, animations, simulations, and analogies that can help clarify key ideas in science... Full description.
New: Mar 30, 2016 
Biodiversity is discussed in many objectives ranging from genetic variation, ecosystem dynamics, functioning and resilience, to interdependent relationships in habitats. Students capture insects, and engage in an activity related to the BEST plots biodiversity protocol as a vehicle to discuss differences in biodiversity among natural and disturbed habitats... Full description.
New: Mar 30, 2016 
The Simulated Evolution project?s BEAGLE software (Biological Experiments in Adaptation, Genetics, Learning and Evolution) is specifically designed for learning evolution in both school and non-school settings. BEAGLE consists of a suite of NetLogo models and supporting materials designed to facilitate inquiry, teaching and learning of concepts and phenomena related to evolution, adaptation, and natural and artificial selection... Full description.
New: Mar 28, 2016 
Understanding Science 101 is an in-depth, multi-part course that explains what science is, how it works, and how it is intertwined with our lives and with society more broadly. The chapters and highlights include resources and visuals on the scientific method, argument and testing, science and society, misconceptions about science and an image library... Full description.
New: Mar 28, 2016 
The Ordinary Extraordinary Junco is a documentary film project designed to engage, entertain, and inspire student and adult audiences of all backgrounds. The feature-length film (88 min.) is comprises eight shorter video modules (3 to 20 min.), or "chapters," that highlight past and present biological research on one of the most common and abundant ?yet amazing and diverse?groups of songbirds in North America, the Juncos... Full description.
New: Mar 28, 2016 
This site has tools that can help you teach science, technology, engineering and math (STEM), focused on supporting the teaching of the Next Generation Science Standards (NGSS). Each tool is focused on a specific issue and leverages the best knowledge from research and practice. Full description.