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Articles 12031 - 12060 of 19290

Full-Text Articles in Science and Mathematics Education

The Unionid Mussels Of The Upper Iowa And Turkey River Watersheds, Jim Eckblad, Brett Ostby, Karis Tenneson Jan 2002

The Unionid Mussels Of The Upper Iowa And Turkey River Watersheds, Jim Eckblad, Brett Ostby, Karis Tenneson

Journal of the Iowa Academy of Science: JIAS

The Iowa driftless region occupies an area of about 9,000 km2 in the northeastern corner of Iowa and is drained by relatively old entrenched meandering streams. The Upper Iowa River and Turkey River are the largest of these streams. During the period from June, 1999 to October, 2000, a total of 193 sites were surveyed for mussels from the Upper Iowa River, the Turkey River, and their main tributaries. Surveys were conducted by hand using a 10 m bank-to-bank search at each site. Data analysis was facilitated using ArcView GIS. The presence of mussels was recorded at 75% of …

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Awards And Recognition, Iowa Academy Of Science, 2002 Jan 2002

Awards And Recognition, Iowa Academy Of Science, 2002

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

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Animal Dissection And Evidence-Based Life-Science And Health-Professions Education, Nathan Nobis Jan 2002

Animal Dissection And Evidence-Based Life-Science And Health-Professions Education, Nathan Nobis

Education Collection

Balcombe’s (2000, 2001) case for replacing learning methods that require pain, suffering, and death for animals with methods that do not (computer-assisted learning, three-dimensional models, videotapes, and other alternatives) can be seen as motivated by this evidentialist perspective. Balcombe provided a wealth of empirical evidence from educational studies to show that in most contexts animal dissection is not necessary—and even counterproductive—to achieve valid educational goals, especially higher order goals (concept learning and problem solving). He demonstrated that no sound defense of dissection has been given.

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Cover - Table Of Contents Jan 2002

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

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Inheritance Of Gray Leaf Spot Resistance In Corn, J. M. D. Crowley, A. R. Hallauer, C. A. Martinson Jan 2002

Inheritance Of Gray Leaf Spot Resistance In Corn, J. M. D. Crowley, A. R. Hallauer, C. A. Martinson

Journal of the Iowa Academy of Science: JIAS

Gray leaf spot disease, caused by Cercospora zeae-maydis Tehon and Daniels, has become a significant disease in Iowa corn (Zea mays L.) production. Incidence of gray leaf spot has increased with the increased use of conservation tillage practices. The inheritance of resistance to gray leaf spot was studied via use of generation mean analyses for five crosses and via use of 100 S1 progenies developed from an F2 population. Experiments were conducted at two locations that included either natural or artificial inoculation with C. zeae-maydis spores. Additive and dominance effects were significant in nearly all instances. Heritability for …

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Fungi And Diseases Associated With Cultivated Switchgrass In Iowa, C. E. Gravert, G. P. Munkvold Jan 2002

Fungi And Diseases Associated With Cultivated Switchgrass In Iowa, C. E. Gravert, G. P. Munkvold

Journal of the Iowa Academy of Science: JIAS

Switchgrass (Panicum virgatum L.) is a native perennial prairie grass that is now cultivated as a forage crop and a biomass crop for renewable energy. Biomass yields of switchgrass in southern Iowa have recently dropped significantly in some fields and the reduction has been attributed to disease. A disease survey was conducted in 1999 to assess the prevalence of major diseases in Chariton Valley switchgrass production. There were disease symptoms present on switchgrass plants in each field and thirteen fungal species were identified from leaf, stem, and root samples. Two pathogenic fungi, Tilletia maclaganii and Colletotrichum graminicola, were present in …

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Book Review - North American Box Turtles: A Natural History, Neil P. Bernstein Jan 2002

Book Review - North American Box Turtles: A Natural History, Neil P. Bernstein

Journal of the Iowa Academy of Science: JIAS

While I have only studied box turtles for four years, from the beginning, I was quickly impressed at the many studies and observations that had been published on North American box turtles. At the same time, I was also frustrated by the lack of syntheses of the material. For the beginning researcher or interested layperson, organizing the studies into a cohesive whole was daunting, and I attempted my own loose compilation that took me most of a summer. However, there is now a new book that provides the background and overview that I sought. C. Kenneth Dodd, a longtime researcher …

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Book Review - The Guide To Iowa's State Preserves, Cornelia F. Mutel Jan 2002

Book Review - The Guide To Iowa's State Preserves, Cornelia F. Mutel

Journal of the Iowa Academy of Science: JIAS

The Iowa State Preserves System gives the highest protection afforded by law to sites "dedicated for maintenance as nearly as possible in [their] natural condition." To date, ninety sites have been dedicated as biological, geological, archaeological, scenic, or historic preserves, declaring that such use is the site's "highest, best, and most important use for the public benefit" (State Preserves Act of 1965). In a state as dramatically altered as Iowa, such remnants are of intense interest to professional and amateur naturalists of all inclinations, as well as to anyone who appreciates nature. Yet understanding the basic qualities of these preserve …

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Soybean Canopy Gap Influence On Velvetleaf Seed Production, Shawn R. Wright, Micheal D. K. Owen, Douglas D. Buhler Jan 2002

Soybean Canopy Gap Influence On Velvetleaf Seed Production, Shawn R. Wright, Micheal D. K. Owen, Douglas D. Buhler

Journal of the Iowa Academy of Science: JIAS

Gaps in the soybean row provide locations for velvetleaf (Abutilon theophrasti) plant growth. Gap width, and velvetleaf plant location within the gap, were investigated for effect on seed production. There was no significant difference in velvetleaf capsule production between plants that grew either centered in a gap or at the western end of a gap in east-west oriented soybean rows. Also, there was no difference in plant survival, emergence through the soybean canopy, flowering, locule number per capsule, or average seed weight of velvetleaf based on gap width. However, there was a difference in capsule production based on gap width. …

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Effects Of Cattle Grazing On Woodlands In Central Iowa, Cathy Mabry Jan 2002

Effects Of Cattle Grazing On Woodlands In Central Iowa, Cathy Mabry

Journal of the Iowa Academy of Science: JIAS

Iowa's forests have undergone a dramatic decline in area since settlement by Europeans. Most of the remaining forests have been degraded by an assortment of human impacts, with cattle grazing the most prominent among them. Using a matched pairs study designed to control for environmental differences among plots, I examined the impact of cattle grazing on the forest understory, canopy trees, and tree regeneration. There were distinct groups of understory species associated with ungrazed and grazed plots. Species associated with ungrazed plots were all native and tended to be perennial herbs with fleshy roots. Ungrazed plots also had species preferring …

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Science Safety Status In Iowa Schools, Gerlovich A. Jack, Rahul Parsa, Bruce Frana, Theresa Stiner Jan 2002

Science Safety Status In Iowa Schools, Gerlovich A. Jack, Rahul Parsa, Bruce Frana, Theresa Stiner

Journal of the Iowa Academy of Science: JIAS

Between May and December 2001, 574 Iowa science teachers participated in a statewide science safety project supported by financial assistance from the Iowa Department of Natural Resources. Part one of the project focused on assessing the status of safety in Iowa secondary science programs. Part two was to provide teachers with information, tools, and training to address the identified needs. Three safety concerns were identified: one was associated with the age of lab facilities and two were related to safety training of teachers.

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How Elementary School Teachers Learn To Teach Mathematics, Phyllis Schneider Kirschner Jan 2002

How Elementary School Teachers Learn To Teach Mathematics, Phyllis Schneider Kirschner

Educational Studies Dissertations

This study examines how elementary school teachers learned to teach mathematics during their pre-service education and during their first few years of teaching. The study identifies those experiences teachers found to be most significant in their development as mathematics teachers. All seven teachers in this study had been taught using procedural methods and each had to find a way to integrate conceptual mathematics education into their own understanding. The study examines the teachers' motivations for pursuing this understanding and the circumstances that provided opportunities to do so.

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Kefahaman Pelajar Tingkatan Empat Tentang Kecerunan Garis Lurus, Latifah Hj. Arshad Jan 2002

Kefahaman Pelajar Tingkatan Empat Tentang Kecerunan Garis Lurus, Latifah Hj. Arshad

Student Works (2000-2009)

Kajian ini dijalankan dalam rangka teori Fahaman Binaan dan mempunyai dua tujuan utama iaitu untuk mengenal pasti kefahaman tentang kecerunan garis lurus yang dipunyai oleh pelajar tingkatan empat dan cara yang digunakan oleh pelajar untuk menyelesaikan masalah yang melibatkan kecerunan garis lurus. Teknik temu duga yang berlandaskan model temu duga Klinikal Piaget digunakan u ntuk mengumpul data. Data bagi kajian ini merangkurni maklumat lisan dan bukan lisan yang dikumpul daripada tiga orang pelajar tingkatan empat yang berbeza dari segi pencapaian akademiknya. Empat aktiviti dalam tiga sesi temu duga klinikal telah dijalankan, iaitu (a) gambaran mental, (b) perwakilan, (c) makna kecerunan …

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Ua64/2 The Challenge: The Newsletter Of The Center For Gifted Studies (No. 8, Winter 2002), Center For Gifted Studies, Tracy Inman Editor Jan 2002

Ua64/2 The Challenge: The Newsletter Of The Center For Gifted Studies (No. 8, Winter 2002), Center For Gifted Studies, Tracy Inman Editor

Gifted Studies Publications

No abstract provided.

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Contents Jan 2002

Contents

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

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The Virginia Collaborative For Excellence In The Preparation Of Teachers, R. W. Farley, W. E. Haver Jan 2002

The Virginia Collaborative For Excellence In The Preparation Of Teachers, R. W. Farley, W. E. Haver

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

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A Model General Education Science Course Involving Humanities And Sciences, Education, And Medical School Collaboration, J. P. Chinnici Jan 2002

A Model General Education Science Course Involving Humanities And Sciences, Education, And Medical School Collaboration, J. P. Chinnici

Journal of Mathematics and Science: Collaborative Explorations

This article described an innovative general education biology course for non-science majors, BIOL 102-Science of Heredity (SOH), stressing active student learning and collaboration [1]. The course has three components. The lecture is taught by J. P. Chinnici and several undergraduate "teacher apprentices"; students receive a classnotes packet, take in-class quizzes, and interact to work on genetic worksheets; incentives include reviewing books, visiting a science museum, and finding albino squirrels. Recitations are taught by graduate students in the Department of Human Genetics; student activities include preparing a family pedigree, writing a term paper, reporting orally and in writing on several media …

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Enhancing Finite Mathematics With Global Awareness, D. L. Hydorn Jan 2002

Enhancing Finite Mathematics With Global Awareness, D. L. Hydorn

Journal of Mathematics and Science: Collaborative Explorations

This paper describes the project of modifying the course, Finite Mathematics, to meet a Global Awareness course requirement. The components of the revised course are described, including topics, in-class activities, and student evaluation methods, along with a summary of the results of a general education assessment of the course.

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Mathematics For Non-Science Majors Chemistry Course, D. D. Shillady Jan 2002

Mathematics For Non-Science Majors Chemistry Course, D. D. Shillady

Journal of Mathematics and Science: Collaborative Explorations

A chemistry course developed for non-science majors has been taught at Virginia Commonwealth University for the past five years. CHEM 112 uses current event articles from science magazines to make use of a verbal channel of learning in non-science majors, but some mathematics is necessary. Examples are given of successful presentation of nuclear chemistry and data needed for a balanced discussion of global warming. Manipulation of symbols in balancing chemical and nuclear reactions, simple algebra, and logarithms for pH and unit analysis of simple stoichiometric conversions are fundamental to basic chemistry. The population of a voting democracy could benefit from …

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A Collaborative Pre-Practicum Apprentice Program Gives A Community College A Jump-Start In Teacher Preparation, G. F. Childers Jan 2002

A Collaborative Pre-Practicum Apprentice Program Gives A Community College A Jump-Start In Teacher Preparation, G. F. Childers

Journal of Mathematics and Science: Collaborative Explorations

The Virginia Collaborative for Excellence in the Preparation of Teachers (VCEPT), funded by a grant from the Division of Undergraduate Education of the National Science Foundation, implemented the VCEPT Pre-Practicum Apprentice Program a couple of years into the grant. Groups of colleges within the Collaborative were to work together to set up an experience for pre-service teachers at their colleges which emphasized mathematics, science, and technology and which gave the pre-service teachers some in-field experience observing instruction in the local schools with lead teachers in these disciplines. Virginia Commonwealth University (VCU), Virginia Union University (VUU), and J. Sargeant Reynolds Community …

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The Science Studio – A Workshop Approach To Introductory Physical Science, S. R. Chaudhury Jan 2002

The Science Studio – A Workshop Approach To Introductory Physical Science, S. R. Chaudhury

Journal of Mathematics and Science: Collaborative Explorations

This paper describes the Science Studio, an innovative workshop approach for instruction in a physical science course that combines aspects of traditional lecture and laboratory. The target audience for this introductory course is non-science majors, including prospective teachers. An inquiry-based, technology-rich learning environment has been created to allow students hands-on, in-depth exploration of topics in physics, and earth and space science. Course philosophy, course development, and sample activities are described in this paper, along with outcomes from a project-wide evaluation of the Virginia Collaborative for Excellence in the Preparation of Teachers (VCEPT), an investigation of change in student attitudes and …

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A Future Teachers Conference – A Vehicle To Retain, Inform, And Inspire New And Prospective Teachers, J. Kasabian, L. Fathe, J. M. Dewar Jan 2002

A Future Teachers Conference – A Vehicle To Retain, Inform, And Inspire New And Prospective Teachers, J. Kasabian, L. Fathe, J. M. Dewar

Journal of Mathematics and Science: Collaborative Explorations

The Los Angeles Collaborative for Teacher Excellence (LACTE) Future Teachers Conference is a day-long learning event for beginning and pre-service K-12 math and science teachers. The Conference provides information, resources and connections tailored to the needs of prospective and new teachers. A unique aspect of the conference is that a group of new and future teachers serve as partners with college faculty on the planning committee. Thus the Conference not only serves to educate new and future teachers, but also provides leadership training for the planning team members; and, the presence of prospective and new teachers on the planning team …

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Journal Of Mathematics And Science: Collaborative Explorations Jan 2002

Journal Of Mathematics And Science: Collaborative Explorations

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

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The Use Of Dramatic Demonstrations To Enhance The Motivation And Learning Of Chemistry Students, H. A. Rowe Jan 2002

The Use Of Dramatic Demonstrations To Enhance The Motivation And Learning Of Chemistry Students, H. A. Rowe

Journal of Mathematics and Science: Collaborative Explorations

As part of the Virginia Collaborative for Excellence in the Preparation of Teachers (VCEPT) project, a series of demonstrations was incorporated into Chemistry 100: Man and Environment, a science course taken by non-science majors including many prospective K-12 teachers. Dramatic chemical demonstrations were first presented to the undergraduate students by the instructor, and then they used demonstration activities to teach each other during the semester. Finally, these undergraduates presented to the K-6 students in the Norfolk Statue University (NSU) Summer Children’s College. The perceptions of science by the undergraduates at the beginning and end of the course were assessed using …

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Programs That Work Section, L. D. Pitt Jan 2002

Programs That Work Section, L. D. Pitt

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

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Comparison Of East Asian And Western Culture In Teaching Mathematics: A Model Of Elementary School Mathematics Curriculum, Hui-Nuan Nuang Jan 2002

Comparison Of East Asian And Western Culture In Teaching Mathematics: A Model Of Elementary School Mathematics Curriculum, Hui-Nuan Nuang

All Graduate Projects

The purpose of this project was to compare cross-cultural mathematics teaching in the elementary schools in East Asian and Western countries, particularly focused on Taiwan and the United States. Another purpose was to design and develop a common mathematics curriculum program for elementary schools to use in both environments. To accomplish this purpose, a review and comparison of current research and literature regarding current curriculum and teaching practice of mathematics in Taiwan and the United States was conducted. Additionally, related information from selected sources was obtained and analyzed.

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A Model Mathematics Thinking Skills Curriculum For Elizabeth Blackwell Elementary School In Sammamish, Washington In The Lake Washington School District, Stacy S. Murphy Jan 2002

A Model Mathematics Thinking Skills Curriculum For Elizabeth Blackwell Elementary School In Sammamish, Washington In The Lake Washington School District, Stacy S. Murphy

All Graduate Projects

The purpose of this project was to develop a model Mathematics Thinking Skills Curriculum for Elizabeth Blackwell Elementary in Sammamish, Washington, in the Lake Washington School District, aimed at sixth grade mathematics classrooms. To accomplish this purpose, a review of related literature and research was conducted and utilized to develop unit and lesson plans for a model mathematics thinking skills curriculum. Students were given sample problems from the units and comparisons were made between teaching mathematics with thinking skills and traditional methods. The results support the hypothesis that mathematics concepts are better understood when combined with thinking skills and the …

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An Integrated Math Curriculum Designed To Develop Problem Solving Skills In Third Grade Students, Nwaynna Bernadette Stewart Jan 2002

An Integrated Math Curriculum Designed To Develop Problem Solving Skills In Third Grade Students, Nwaynna Bernadette Stewart

All Graduate Projects

The effectiveness of a curriculum integrating math, manipulative use, writing, drama and the visual arts was examined. The information gathered through research articles and case studies was used to create an integrated math program. The focus of the project is to strengthen problem solving and critical thinking skills of third grade students. The project is designed to supplement materials and textbooks teachers are currently using in their classrooms. Implications for future areas of research are discussed.

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A Model Geometry And Probability Supplimental Curriculum For Fourth Grade Students In Alignment With The Washington State Essential Academic Learning Requirements For Mirror Lake Elementary School, Federal Way School District, Federal Way, Washington, Melanie Jane Strey Jan 2002

A Model Geometry And Probability Supplimental Curriculum For Fourth Grade Students In Alignment With The Washington State Essential Academic Learning Requirements For Mirror Lake Elementary School, Federal Way School District, Federal Way, Washington, Melanie Jane Strey

All Graduate Projects

The purpose of this project was to develop and implement a model supplemental geometry and probability curriculum for Mirror Lake Elementary in the Federal Way School District, Federal Way, Washington. To accomplish this purpose, a review of related literature was conducted. Additionally, related information and materials from selected sources was obtained and analyzed. Control Groups were formed to test district provided curriculum and district provided curriculum with supplemental units. The results showed greater student academic gains when the district provided curriculum was supplemented with additional material.

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Integrating Mathematics And Language Arts With Assessment In A Fourth Grade Classroom, Erika Vestad Jan 2002

Integrating Mathematics And Language Arts With Assessment In A Fourth Grade Classroom, Erika Vestad

All Graduate Projects

The purpose of this project was to develop a unit integrating language arts, mathematics, and Washington Assessment of Student Learning (WASL) practice items for use in a fourth grade classroom in the Yakima School District in Yakima, Washington. This unit allows teachers to better use the W ASL practice items assigned by the district. It also helps students prepare for the WASL and teaches life-long skills. To accomplish this purpose. current literature was reviewed. Additionally, related information from selected sources was obtained and analyzed. Current literature and related sources were synthesized into an integrated unit on measurement and geometry to …

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