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Lottie Peppers

Equal Parts Sleeping and Eating - National Center for Case Study Teaching in Science (N... - 0 views

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    Every year during the foodless winter months, bears enter their den and lapse into a state of extended dormancy and slumber (called hibernation). For the next 130+ consecutive days they do not drink, eat, defecate, or urinate. Rarely do they die from starvation, dehydration, or poisoning from waste buildup while hibernating. How do bears prepare for this period of starvation coupled with significant weight loss? Bears are not only the champions of winter rest, but are also the undisputed champions of non-stop summer eating. They are constantly on the move during late spring and all summer long into late autumn oftentimes covering great distances over diverse habitats in their incessant search for locally and seasonally available food. In this case study, students learn the basics about bear denning, hibernation energetics, the differences in size of bear home ranges, and the nutritional landscape they must navigate to prepare for the long months of winter inactivity and caloric deprivation. The case is suitable for a wide audience, including majors or non-majors in lower- or upper-level undergraduate courses in environmental science, ecology, biology, or wildlife science.
Lottie Peppers

Mad Dogs and Chicken Heads - National Center for Case Study Teaching in Science (NCCSTS) - 0 views

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    Although rabies still causes thousands of deaths globally every year, it has essentially been eradicated from most industrialized countries. Part of the success story is due to an unusual project undertaken by the Swiss prompted by a series of large outbreaks in the 1970s: the large-scale vaccination of wild foxes to stop the epidemic. In this directed case study, students use an easily accessible MS Excel-based model to understand key epidemiological parameters of rabies outbreaks in wild foxes. The simple model allows students also to predict what proportion of foxes needs to be vaccinated to eradicate the virus from the population. The case fits into both ecological and microbiological (epidemiological) courses and offers opportunities to explore zoonotic diseases and "One Health" questions. The mathematical basis of the differential equations in the models is explained, although prior knowledge of calculus is not essential. A key learning outcome is the critical understanding of both the power and limitations of simple epidemiological models. This case was written for an online course but could also be used as a face-to-face activity if students have access to computers in class.
Lottie Peppers

Opinion | I thought I'd seen it all studying plastics. Then my team found 2,000 bags in... - 0 views

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    Our team of scientists documented that more than 300 camels in the region around Dubai had died from eating humans' trash, accounting for 1 percent of dead camels evaluated in the region since 2008. Unlike other research that might examine animals in a laboratory, this was a field study with concentrations of plastic trash that currently exist in the environment. It is a real-world tragedy with ecologically relevant concentrations of trash.
Lottie Peppers

MOSAiC Data Puzzles | MOSAiC - 0 views

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    Are you interested in using authentic Arctic and MOSAiC expedition data in your classroom? Look no further! Data Puzzles allow your students to analyze and interpret real scientific data and develop skills in hypothesis testing, graphing, and more.
Lottie Peppers

Curricula | inquiryHub: Research-based Curricula Supporting Next Generation Science | U... - 0 views

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    inquiryHub high school and middle school curricula are aligned to the Framework and guided by the Next Generation Science Standards (NGSS). Using research-based approaches to teaching science in a deeply digital environment, students contribute resources, observations, data, and analyses to solve larger scientific problems.  inquiryHub curricula are designed to go beyond traditional science content. By focusing on phenomena relevant to students' lives and communities, the coursesprovides opportunities to authentically engage with science and engineering practices.
Lottie Peppers

The Face of a Rare Genetic Disease - National Center for Case Study Teaching in Science... - 0 views

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    This case study is designed to teach basic concepts of genetics by focusing on a rare disease, pseudoxanthoma elasticum (PXE).  Chromosome 16 is the narrator at the beginning of the case and introduces students to genes, chromosomes and mutations. The focus then shifts to the patient and his mother as she finds out about her son's disease and her subsequent efforts to connect with patient advocacy groups for support. The case concludes with students watching a TED talk given by Sharon Terry, the real-life mother on whom this story is loosely based, so that students can connect on an emotional and human level with someone who has intimate experience as a parent of children with a rare genetic disease. The case is suitable for high school general biology classes, but it can also be used by biology major or non-major undergraduates in a lower-division biology class, or in any lower-division non-major class focused on human disease.
Lottie Peppers

Interactive Fractal Tree of Life Zooms In On Earth's Entire Evolutionary History | Popu... - 1 views

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    The data comes from the open Tree of Life Project, a collaboration among biologists and other scientists around the world. It contains decades' worth of work in phylogeny, evolutionary history of and relationships among groups of organisms. The project is about a year away from a complete tree of all life, Rosindell said. He wanted a system in place that could visualize it as soon as it's ready. Right now, OneZoom only contains mammals, but that's still more than 5,000 species, all correlated with each other and color-coded according to their threat levels. Rosindell has big plans for the rest, and he even wants to build a searchable app for smartphones, showcasing the history and relationships between all life on Earth.
Lottie Peppers

Hundreds of fish species, including many that humans eat, are consuming plastic - 0 views

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    In the broadest review on this topic that has been carried out to date, we found that, so far, 386 marine fish species are known to have ingested plastic debris, including 210 species that are commercially important. But findings of fish consuming plastic are on the rise. We speculate that this could be happening both because detection methods for microplastics are improving and because ocean plastic pollution continues to increase.
Lottie Peppers

Scientists clone the first U.S. endangered species - 0 views

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    Scientists have cloned the first U.S. endangered species, a black-footed ferret duplicated from the genes of an animal that died over 30 years ago.
Lottie Peppers

The Underrepresentation Curriculum Project - A flexible curriculum designed to help stu... - 0 views

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    The Underrepresentation Curriculum (URC) is a free, flexible curriculum for STEM instructors to teach about injustice and change the culture of STEM. Using tools such as data analysis, hypothesis creation, and investigation, students look critically at science through the lenses of equity and inclusion. By comparing the general population to similar data describing scientists, students can explore issues of social justice in STEM.
Lottie Peppers

Human Variation - 0 views

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    From exhibit RACE, digital resources
Lottie Peppers

Gender-Inclusive Biology - 0 views

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    Our students will face decisions about health, science, and medicine that we can hardly imagine.   How can we keep student needs and science first, yet still create a safe and affirming space for intellectual curiosity? Teaching biology creates many opportunities to authentically incorporate student curiosity. The Next-Generation Science Standards (NGSS) expect students to ask questions about natural phenomena and then explain their answers using models. This website offers examples of adapting curriculum to NGSS and gender-inclusive standards, as well as resources for advocating to administration and others.
Lottie Peppers

Startup Builds 3 Huge Indoor Farms in Appalachia Turning Coal Country into Agricultural... - 0 views

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    With several facilities already producing fruits and vegetables, AppHarvest is set to become a national leader in alternative farming through their cutting edge indoor technology that saves space, recycles water, and produces 30 times more food than a conventional farm.
Lottie Peppers

https://twitter.com/amoebasisters/status/1354245407421964288?s=11 - 0 views

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    Graphic tracking chromosome number during division
Lottie Peppers

4 Strategies to Make Virtual PBL Work | Edutopia - 0 views

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    What do we care most about? We care about social collaboration, immersing students in investigations of science phenomena, developing artifacts that demonstrate rigorous learning, and then presenting those artifacts for community use.
Lottie Peppers

World population growth is expected to nearly stop by 2100 | Pew Research Center - 0 views

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    For the first time in modern history, the world's population is expected to virtually stop growing by the end of this century, due in large part to falling global fertility rates, according to a Pew Research Center analysis of new data from the United Nations. By 2100, the world's population is projected to reach approximately 10.9 billion, with annual growth of less than 0.1% - a steep decline from the current rate. Between 1950 and today, the world's population grew between 1% and 2% each year, with the number of people rising from 2.5 billion to more than 7.7 billion.
Lottie Peppers

How to Weave Social Justice Into Middle and High School Science Instruction | Edutopia - 0 views

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    Weaving Social Justice Into Science Instruction Shedding light on inequity in science fields bolsters students' critical thinking skills and sense of self-efficacy in science. A free curriculum helps teachers get started.
Lottie Peppers

Food Chains, Food Webs, and Energy Pyramids | Texas Gateway - 0 views

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    online interactive questions no log in; provides feedback
Lottie Peppers

Marine ecosystem - Science Learning Hub - 0 views

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    build out interactive food web activity using site and word doc on this file: https://www.sciencelearn.org.nz/resources/1525-build-a-marine-food-web "Build_a_marine_food_web.doc"
Lottie Peppers

Becoming a Friend Instead of a Foe - National Center for Case Study Teaching in Science... - 0 views

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    This case study centers on symbiotic relationships between insects and bacteria using Drosophila melanogaster, the common fruit fly, and the recently discovered bacterial species Sodalis praecaptivus. Until recently, the only known Sodalis species of bacteria were symbiotically associated with several different species of insects. However, free-living non-symbiont Sodalis species are being tested in several different insect species to determine if they can transition into symbiotic relationships. A pre-class assignment (see Supplemental Materials) directs students to read an open access research journal article providing a comprehensive review of S. praecaptivus and describing an experimental weevil model that parallels that of the fruit fly. A PowerPoint presentation shown in class (see Supplemental Materials) provides further background before students work in small groups to complete the case study focusing on results from D. melanogaster and S. praecaptivus model experiments.  Although developed for a genetics course, this interrupted case is appropriate for an upper-level biology course. It can be completed within a 75-minute class meeting, or adapted for shorter time periods.
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