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Moore, Dani - - 2012
In species that reproduce sexually, an individual's fitness depends on its ability to secure a mate (or mates). Although both males and females are selected to maximize their reproductive output, the mating strategies of the two sexes can differ dramatically. We present a classroom simulation that allows undergraduates to actively ...
Hudson, Margaret - - 2012
This simple role-play exercise involves the whole class in learning about the function of hormones in promoting homeostasis and the value of negative feedback, using the example of regulation of calcium ions by parathyroid hormone.
Buskohl, Philip - - 2012
Embryonic development offers a unlade perspective on the function of many biological processes because of embryos' heightened sensitivity to environmental factors. This hands-on lesson investigates the effects of elevated vitamin A on the morphogenesis of chicken embryos. The active form of vitamin A (retinoic acid) is applied to shell-less (ex ...
Dorrell, Michael - - 2012
We describe a technique for removing and growing chick embryos in culture that utilizes relatively inexpensive materials and requires little space. It can be readily performed in class by university, high school, or junior high students, and teachers of any grade level should be able to set it up for ...
Rollinson, Susan - - 2012
The growth of a pine tree is examined by preparing "tree cookies" (cross-sectional disks) between whorls of branches. The use of Christmas trees allows the tree cookies to be obtained with inexpensive, commonly available tools. Students use the tree cookies to investigate the annual growth of the tree and how ...
Venditti, Jennifer - - 2012
In this guided inquiry, students explore the complex hormonal regulation of the female reproductive cycle using inexpensive ovulation and pregnancy detection kits that are readily available over the counter. This hands-on activity engages students in the practice of doing science as highlighted by the National Science Education Standards. The laboratory ...
Cherif, Abour - - 2012
Biological and social evolutionary processes, along with social and cultural developments, have allowed humans to separate procreation from pleasurable/recreational sexual activity. As a class learning project, an alternative, hypothetical reproductive scenario is presented: "What if humans were biologically ready to conceive only during one period each year?" Discussion is followed ...
Chung, Hui-Min - - 2012
Allchin, Douglas - - 2012
Lord, Richard, - - 2012
Batorsky, Roberta - - 2012
Martin-Morris, Linda - - 2012
French, Donald - - 2012
Lorbiecke, Rene - - 2012
The growth of pollen tubes is one of the most characteristic events in angiosperm reproduction. This article describes an activity for visualizing the journey and guidance of pollen tubes in the reproductive structures of a flowering plant. The activity uses a semi-in vivo system with rapid-cycling Brassica rapa, also known ...
DeFina, Anthony - - 2012
I propose three guided questions for reflection as a jumpstart organizational formula for students with poor writing application skills to follow when responding to an open-ended question. The recipe prescribes that the student (1) understand the question design, (2) identify the intent or objective of the question, and (3) proceed ...
Lauer, Antje - - 2012
We designed a microbiology project that fully engaged undergraduate biology students, high school students, and their teachers in a summer research program as part of the Research Education Vitalizing Science University Program conducted at California State University Bakersfield. Modern molecular biological methods and microscopy were used to detect and identify ...
Robinson, David - - 2012
The enzyme-linked immunosorbent assay (ELISA) is a powerful immunological technique for quantifying small amounts of compounds and has been used in research and clinical settings for years. Although there are laboratory exercises developed to introduce the ELISA technique to students, their ability to promote student learning has not been thoroughly ...
Lenz, Laura - - 2012
In today's global society, with science and technology advancing at a rapid pace, issues about biological topics are common. A typical standards-based high school or general college-level biology classroom naturally lends itself to teaching issue-oriented science. In an issue-oriented classroom, students analyze and discuss personal, societal, and global issues that ...
Bybee, Rodger - - 2012
The release of A Framework for K-12 Science Education: Practices, Crosscutting Concepts, and Core Ideas (NRC, 2012) provides the basis for the next generation of science standards. This article first describes that foundation for the life sciences; it then presents a draft standard for natural selection and evolution. Finally, there ...
Batorsky, Roberta - - 2012
French, Donald - - 2012
Harris, Cornelia - - 2012
Does working with first- and second-hand ecological data improve students' knowledge of ecological ideas, motivation and engagement in science, data exploration, and citizenship skills (students' ability to make informed decisions)? We have been exploring this question with high school science teachers in New York State for the past year using ...
Enos-Berlage, Jodi - - 2012
A 3-week laboratory module was developed for an undergraduate microbiology course that would connect student learning to a real-life challenge, specifically a local water-quality project. The laboratory series included multiple field trips, sampling of soil and water, and subsequent analysis for bacteria and nitrate. Laboratory results confirmed the usefulness of ...
Lee, David - - 2012
Our nation's first school of forestry operated in the early 1900s, when states were still being admitted to the union, and the motor car and typewriter had just been introduced to the American public. In the previous century, timber operations had slashed their way through forests with the simple policy ...
Sellers, L. - - 2012
The opportunities for meaningful classroom learning activities are everywhere. In this article, we explain some of the little known, widespread, horrific issues associated with one aspect of the pet trade. By the time they reach high school age, many students have personally experienced the end result of the deplorable business ...
Robinson, Jesse - - 2012
Many high school science students do not encounter opportunities for authentic science inquiry in their formal coursework. Ecological field studies can provide such opportunities. The purpose of this project was to teach students about the process of science by designing and conducting experiments on whether and how honey bees (Apis ...
Richardson, Matthew - - 2012
Scientists researching biological control should engage in education because translating research programs into classroom activities is a pathway to increase scientific literacy among students. Classroom activities focused on biological control target all levels of biological organization and can be cross-disciplinary by drawing from subject areas such as ecology, molecular biology, ...
Kormondy, Edward - - 2012
In this issue of ABT that focuses on ecology, I believe it should be of interest to reflect briefly on its history and development to provide a context for what ecology is at present. Much of what follows is derived from my previous publications (Kormondy, 1965, 1996).
Allchin, Douglas - - 2012
Sellers, L. - - 2012
Batqrsky, Roberta - - 2012
Brinker, Andrew - - 2012
Terrariums have decorated the shelves and counters of biology offices and classrooms for centuries. Living organisms inspire students and teachers alike. These wonderful ecosystems allow for both experimentation and observation of living systems. Here, I outline a new approach to building classroom terrariums. Historically, terrariums have been made using rocks, ...
Grumbine, Richard - - 2012
This article outlines an exercise that assesses student knowledge of food-web and energy-flow concepts. Students work in teams and use manipulatives to build food-web models based on criteria assigned by the instructor. The models are then peer reviewed according to guidelines supplied by the instructor.
Barber, Nicholas - - 2012
I present a framework for ecology and evolution laboratory exercises using artificial caterpillars made from modeling clay. Students generate and test hypotheses about predation rates on caterpillars that differ in appearance or "behavior" to understand how natural selection by predators shapes distribution and physical characteristics of organisms.
McEuen, Amy - - 2012
We developed an exercise for a university-level ecology class that teaches hypothesis testing by examining acorn preferences and caching behavior of tree squirrels (Sciurus spp.). This exercise is easily modified to teach concepts of behavioral ecology for earlier grades, particularly high school, and provides students with a theoretical basis for ...
Puche, Helena - - 2012
This semi-guided inquiry activity explores the macroinvertebrate fauna in water sources affected by different levels of pollution. Students develop their ability to identify macroinvertebrates, compare aquatic fauna from different sources of water samples, evaluate water quality using an index, document and analyze data, raise questions and hypotheses, and discuss other ...
Sauterer, Roger - - 2012
Introducing students to the process of scientific inquiry is a major goal of high school and college labs. Environmental toxins are of great concern and public interest. Modifications of a vertebrate developmental toxicity assay using the frog Xenopus laevis can support student-initiated toxicology experiments that are relevant to humans. Teams ...
Matthews, Robert - - 2012
Since 1968, biologists have known that termites line up and follow some ballpoint ink lines but not others. Suggestions for class lessons based on this observation have become widespread. However, many of these are incomplete, superficial, conflicting, and/or occasionally inaccurate, and most provide only simple demonstrations or cookbook-style confirmations. Here, ...
Alozie, Nonye - - 2012
How can science instruction engage students in 21st-century skills and inquiry-based learning, even when doing simple labs in the classroom? We collaborated with teachers in professional development workshops to transform "cookbook" activities into engaging laboratory experiences. We show how to change the common classroom activity of DNA extraction of wheat ...
French, Donald - - 2012
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