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Showing 1 to 15 of 889 results Save | Export
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Hodgson, Jay Y. S.; Mateer, Scott C. – American Biology Teacher, 2015
The compound microscope is an important tool in biology, and mastering it requires repetition. Unfortunately, introductory activities for students can be formulaic, and consequently, students are often unengaged and fail to develop the required experience to become proficient in microscopy. To engage students, increase repetition, and develop…
Descriptors: Inquiry, Biology, Science Instruction, Teaching Methods
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Flinn, Kathryn M. – American Biology Teacher, 2015
In this classroom activity, students build a phylogeny for woody plant species based on the morphology of their twigs. Using any available twigs, students can practice the process of cladistics to test evolutionary hypotheses for real organisms. They identify homologous characters, determine polarity through outgroup comparison, and construct a…
Descriptors: Class Activities, Science Activities, Teaching Methods, Educational Strategies
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Hubler, Tina; Adams, Patti; Scammell, Jonathan – American Biology Teacher, 2015
The molecular basis of evolution is an important and challenging concept for students to understand. In a previous article, we provided some of the scientific background necessary to teach this topic. This article features a series of laboratory activities demonstrating that molecular events can alter the genomes of organisms. These activities are…
Descriptors: Laboratory Experiments, Science Activities, Molecular Biology, Genetics
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Bouwma-Gearhart, Jana; Bouwma, Andrew – American Biology Teacher, 2015
The "Next Generation Science Standards" (NGSS Lead States, 2013) recommend that science courses engage communities of students in scientific practices that include building accurate conceptual models of phenomena central to the understanding of scientific disciplines. We offer a set of activities, implemented successfully at both the…
Descriptors: Scientific Concepts, Scientific Literacy, Scientific Principles, Science Activities
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Zeeh, Ann; Quell, Andrew – American Biology Teacher, 2015
Teachers are being challenged to engage students in ways that will elevate student interest and understanding of concepts in science and encourage students to gather evidence to support what we know about science. It is critical for teachers to have budget-friendly, supporting activities that are aligned with current educational standards, that…
Descriptors: Science Instruction, Scientific Concepts, Student Interests, Science Activities
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Baumgartner, Erin; Biga, Lindsay; Bledsoe, Karen; Dawson, James; Grammer, Julie; Howard, Ava; Snyder, Jeffrey – American Biology Teacher, 2015
Quantitative literacy is essential to biological literacy (and is one of the core concepts in "Vision and Change in Undergraduate Biology Education: A Call to Action"; AAAS 2009). Building quantitative literacy is a challenging endeavor for biology instructors. Integrating mathematical skills into biological investigations can help build…
Descriptors: Numeracy, Biology, College Science, Science Instruction
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Dorner, Meredith – American Biology Teacher, 2015
Research shows the importance of active learning, especially within science classes. One way to achieve this goal is to incorporate student-driven projects into the course (e.g., posters). Traditionally, science-poster assignments follow the spirit of the science fair in which a student conducts an experiment and analyzes the results. This article…
Descriptors: Student Projects, Science Activities, Scientific Concepts, Scientific Methodology
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Lampert, Evan – American Biology Teacher, 2015
Invasive species, defined as exotic species that reach pest status, are major threats to global biodiversity. Although invasive species can belong to any taxonomic group, general characteristics such as rapid growth and reproduction are shared by many invasive species. "Invented Invaders" is a collaborative activity in which students…
Descriptors: Science Activities, Teaching Methods, Educational Practices, Environmental Influences
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Cooper, Robert A. – American Biology Teacher, 2015
This paper presents an activity that engages students in model-based reasoning, requiring them to predict the behavior of the trp and lac operons under different environmental conditions. Students are presented six scenarios for the "trp" operon and five for the "lac" operon. In most of the scenarios, specific mutations have…
Descriptors: Biology, Models, Prediction, Vignettes
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Stephens, Philip J. – American Biology Teacher, 2015
A simple and inexpensive method of monitoring the movement of an isolated frog heart provides comparable results to those obtained with a force transducer. A commercially available photoresistor is integrated into a Wheatstone bridge circuit, and the output signal is interfaced directly with a recording device. An excised, beating frog heart is…
Descriptors: Science Instruction, Biology, Anatomy, Physiology
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Valauri-Orton, Alexis; Bernd, Karen K. – American Biology Teacher, 2015
For many middle school students, connections between their lives and concepts like chemical reactivity, microbial contamination, and experimental sampling are not obvious. They may also feel that, even if there were connections, understanding the monitoring and quality of natural resources is something for grown-ups and beyond their…
Descriptors: Middle School Students, Secondary School Science, Microbiology, Chemistry
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Çil, Emine – American Biology Teacher, 2015
Students need to be aware of plants in order to learn about, appreciate, care for, and protect them. However, research has found that many children are not aware of the plants in their environment. A way to address this issue might be integration of plants with various disciplines. I investigated the effectiveness of an instructional approach…
Descriptors: Science Instruction, Elementary School Students, Elementary School Science, Plants (Botany)
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Lampert, Evan C.; Morgan, Jeanelle M. – American Biology Teacher, 2015
Diverse communities of arthropods and microbes provide humans with essential ecosystem goods and services. Arthropods are the most diverse and abundant macroscopic animals on the planet, and many remain to be discovered. Much less is known about microbial diversity, despite their importance as free-living species and as symbionts. We created…
Descriptors: Inquiry, Biodiversity, Research Projects, Student Projects
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Nash, Troy R.; Yang, Suann; Inman, John C. – American Biology Teacher, 2015
We describe an alternative to the kinds of observation-based lab exercises that are often used to cover animal and plant evolution with respect to transitioning from aquatic to terrestrial habitats. We wrote this activity to address these objectives, but also to model the process of scientific inquiry and to require students to collect and analyze…
Descriptors: Science Activities, Evolution, Botany, Animals
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Countryman, Lyn L.; Maroo, Jill D. – American Biology Teacher, 2015
Considerable anecdotal evidence indicates that some of the most difficult concepts that both high school and undergraduate elementary-education students struggle with are those surrounding evolutionary principles, especially speciation. It's no wonder that entry-level biology students are confused, when biologists have multiple definitions of…
Descriptors: Secondary School Science, College Science, Evolution, Scientific Principles
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