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University of Northern Iowa

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Articles 901 - 930 of 4046

Full-Text Articles in Science and Mathematics Education

Cover - Table Of Contents Jan 1999

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Planting Method And Fertilization Timing Effects On Ridge-Till Corn, Keith A. Kohler, Mohammadreza Ghaffarzadeh, Richard M. Cruse Jan 1999

Planting Method And Fertilization Timing Effects On Ridge-Till Corn, Keith A. Kohler, Mohammadreza Ghaffarzadeh, Richard M. Cruse

Journal of the Iowa Academy of Science: JIAS

Fertilizer application technology has improved fertilizer use efficiency in ridge-till systems, but little work on planting methods and application timing within these systems has been done. A study was conducted to evaluate corn (Zea mays 1.) response to injected nitrogen (N) fertilizer applied to different planting methods at common application times. The performance of the late spring soil nitrate and the basal stalk nitrate tests was examined within these systems. A continuous corn and a corn-soybean [Glycine max (1) Merr.] rotation were used in 1989-1991 at two Iowa locations on Nicolett and Monona series soils, line-loamy, mixed, mesic Typic …


Cover - Table Of Contents Jan 1999

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


The Species Richness Of Birds Visiting A Yard Is Influenced By The Feeders/Seeds Present, David Joseph Horn Jan 1999

The Species Richness Of Birds Visiting A Yard Is Influenced By The Feeders/Seeds Present, David Joseph Horn

Journal of the Iowa Academy of Science: JIAS

Although seed preferences of species that visit bird feeders have been well documented, we know little about feeder/seed combinations most appropriate for attracting highest species richness or increasing abundance of individual species. I studied how the species composition of birds visiting a feeding station was influenced by addition of feeders filled with mixed seed, thistle, and suet in a yard that previously contained only a feeder with sunflower seeds. Addition of a seed mixture consisting of hulled sunflower, hulled peanuts, hulled millet, and hulled "tree" nuts in an elevated platform feeder increased species richness and total number of birds visiting …


The Vascular Flora Of Doolittle Prairie State Preserve - A Prairie Pothole Wetland Complex, Paul R. Wetzel, William R. Norris, Kevin M. Lyles Jan 1999

The Vascular Flora Of Doolittle Prairie State Preserve - A Prairie Pothole Wetland Complex, Paul R. Wetzel, William R. Norris, Kevin M. Lyles

Journal of the Iowa Academy of Science: JIAS

Doolittle Prairie State Preserve is a 10 ha prairie pothole wetland complex located in Story County, central Iowa. A vascular flora of Doolittle Prairie is compiled and the prominent vegetation communities and zones described based on field observations by the authors and several additional investigators from 1982 to 1997. The preserve contains 14 shallow wetlands comprised of low prairie, wet meadow, and shallow emergent plant communities, as well as a disturbed prairie community and fence rows. These communities support a diverse vascular flora of 223 native species, plus 42 non-natives, representing 59 families and 178 genera. The Asteraceae (40), Poaceae …


Book Review: Iowa's Minerals: Their Occurrence, Origins, Industries, And Lore, Raymond R. Anderson Jan 1999

Book Review: Iowa's Minerals: Their Occurrence, Origins, Industries, And Lore, Raymond R. Anderson

Journal of the Iowa Academy of Science: JIAS

Iowa's Minerals: Their Occurrence, Origins, Industries, and Lore. Paul Garvin. 1998. University of Iowa Press, Iowa City IA. vii + 260 pages. ISBN 0-87745-626-7 hdbd., ISBN 0-87745-627-5 (pbk.).

A mineral is defined as a "naturally occurring, chemically homogeneous crystalline solid." Every mineral has a composition, structure, and characteristics that make it uniquely different from every other mineral. In his new book, Paul Garvin, Professor of Geology at Cornell College in Mount Vernon, Iowa, presents a uniquely different discussion of Iowa's Minerals. While this book does contain the requisite discussions of mineral origins, chemistry, crystallography, and other descriptive information, Garvin enhances …


The Habitat And Distribution Of The Stinkpot, Sternotherus Odoratus, In Iowa, Kristi K. Sutton, James L. Christiansen Jan 1999

The Habitat And Distribution Of The Stinkpot, Sternotherus Odoratus, In Iowa, Kristi K. Sutton, James L. Christiansen

Journal of the Iowa Academy of Science: JIAS

Twenty years of study have shown that the stinkpot, Sternotherus odoratus and the Illinois mud turtle (Kinosternon flavescens spooneri) occur in Iowa primarily in the Mississippi Alluvial Plain. Even though the turtles are found within a kilometer of each other, they are never sympatric. Illinois mud turtles are most often associated with ephemeral ponds and soils of nearly pure sand (Sparta sand and Chelsea loamy fine sand), whereas stinkpots inhabit permanent water, often fed by cold springs, and are limited to sandy, loamy soils (Aquolls and Perks sandy loam). Even though several new localities have been discovered for stinkpots, population …


Back Cover Jan 1999

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Front Matter Jan 1999

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Community Composition Of Dry Prairie In Iowa And Southeast Nebraska, Thomas R. Rosburg Jan 1999

Community Composition Of Dry Prairie In Iowa And Southeast Nebraska, Thomas R. Rosburg

Journal of the Iowa Academy of Science: JIAS

Results from quantitative research on the community composition of dry prairies across Iowa were consolidated from three different studies completed since 1983. Information is provided on the distribution and abundance of 204 dry prairie species. The most abundant species included little bluestem (Schizachyrium scoparium (Michx.) Nash), big bluestem (Andropogon gerardii Vitman), side-oats grama (Bouteloua curtipendula (Michx.) Torrey), prairie dropseed (Sporobolus heterolepis (Gray) Gray) and Kentucky bluegrass (Poa pratensis L.). Multivariate analyses were completed using two independent measures of species abundance-relative cover and community constancy. When relative cover was used to determine community composition, the abundance of graminoids (tallgrasses vs. mid-grasses) …


Back Cover Jan 1999

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Iowa Academy Of Science Membership Directory, 1999-2000, Iowa Academy Of Science Jan 1999

Iowa Academy Of Science Membership Directory, 1999-2000, Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Editorial Board, Journal ... 5
Committees ... 6
Sections ... 18
ISTS Regional Directors ... 22
Awards of Merit ... 24
Excellence in Science Teaching Awards ... 25
Past Presidents ... 26
Membership Roster ... 27
Corporate Sponsors ... 70


Osmia Spp. Reared In Artificial Nesting Sites In A Backyard Environment, R. L. Wilson, C. A. Abel, S. G. Mcclurg Jan 1999

Osmia Spp. Reared In Artificial Nesting Sites In A Backyard Environment, R. L. Wilson, C. A. Abel, S. G. Mcclurg

Journal of the Iowa Academy of Science: JIAS

Controlled pollination in field cages is used at the United States Department of Agriculture - Agricultural Research Service North Central Regional Plane Introduction Station (NCRPIS) for seed increase of several plane species. Honey bees, Apis mellifera L., have been used almost exclusively for several years. Recently we began investigating other pollinating insects for controlled pollination. 0smia cornifrons (Radoszkowski), a solitary bee imported from Japan, has been an excellent early-season pollinator. We placed domiciles of these bees in backyards of the NCRPIS staff to aid us in providing adequate numbers of bees for use in field cages the following growing season. …


Editorial Board & Iowa Academy Of Science Officers And Directors Jan 1999

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Front Matter Jan 1999

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Book Review: The Tallgrass Restoration Handbook: For Prairies, Savannas, And Woodlands, Stephen D. Hendrix Jan 1999

Book Review: The Tallgrass Restoration Handbook: For Prairies, Savannas, And Woodlands, Stephen D. Hendrix

Journal of the Iowa Academy of Science: JIAS

The Tallgrass Restoration Handbook: For Prairies, Savannas, and Woodlands. Stephen Packard and Cornelia F. Mutel, eds. 1997. Society for Ecological Restoration. 463 pages. ISBN 1-55963-319-0 hdbd.

The publication of the Tallgrass Restoration Handbook is an enormous step in the right direction for people who have already learned to appreciate and admire the beauty and utility of prairies and who now want to roll up their sleeves and begin the restoration of their own bit of tallgrass prairie. All of this volume excluding the first two introductory chapters (Part I) is dedicated to the practical aspects of prairie restoration.


Front Matter Jan 1999

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


A Municipal Inventory And Evaluation Of Natural Areas: History And Methodology, William R. Norris, Donald R. Farrar Jan 1999

A Municipal Inventory And Evaluation Of Natural Areas: History And Methodology, William R. Norris, Donald R. Farrar

Journal of the Iowa Academy of Science: JIAS

An inventory of natural areas in the vicinity of Ames, Iowa was conducted (1990-1994) in response to conflicts arising when significant natural areas were encountered on lands approved for development by the City of Ames (Iowa) Planning Office. Methods for objective evaluation of woodland and prairie quality were developed for use during the inventory. The woodland method is based on four components: I) Diversity of expected species, H) Structure of canopy and understory layers, III) Fidelity of species to the habitat and IV) absence of Introduced Species. Rules are explicitly stated for the scoring of each component for both the …


Iowa Academy Of Science 111th Annual Meeting [1999]: Advance Program, Iowa Academy Of Science Jan 1999

Iowa Academy Of Science 111th Annual Meeting [1999]: Advance Program, Iowa Academy Of Science

Iowa Academy of Science Documents

Contains information about the schedule and presentations for the 1999 annual meeting of the Iowa Academy of Science.


Math Wars: The Politics Of Curriculum, Raymond Johnson Jan 1999

Math Wars: The Politics Of Curriculum, Raymond Johnson

Presidential Scholars Theses (1990 – 2006)

There is an ongoing battle in mathematics education, a battle sometimes so fierce that some people call it the "math wars". Americans have seen many changes and proposed changes in their educational system in the last fifty years, but few have stirred such debate, publicity, and criticism as have the changes in mathematics education. We will first look at the history of the math wars and take time to examine previous attempts to change mathematics education in America. Second, we will assess the more recent efforts in mathematics education reform. Lastly, we will make some predictions for the future of …


Elefantastic Bingo: A Bingo Game For Teaching Science Concepts And Vocabulary Associated With Elephants, Audrey C. Rule Jan 1999

Elefantastic Bingo: A Bingo Game For Teaching Science Concepts And Vocabulary Associated With Elephants, Audrey C. Rule

Open Educational Resources

This game allows students to learn new science vocabulary and relevant facts about elephants. This bingo game is a valuable curriculum resource for any teacher who is teaching about elephants or other endangered animals. Directions for play, calling cards (six to a page), and play cards (four to a page), are included.


Wolf Bingo: A Bingo Game For Teaching Concepts And Vocabulary Associated With Wolves, Audrey C. Rule Jan 1999

Wolf Bingo: A Bingo Game For Teaching Concepts And Vocabulary Associated With Wolves, Audrey C. Rule

Open Educational Resources

This document describes a game that provides students with practice in learning vocabulary and concepts associated with wolves. Directions for play and play cards (four to a page) are included.


Crystal Shape Bingo: A Bingo Game For Teaching Recognition Of Three-Dimensional Crystal Shapes And Planar Geometric Shapes Of Crystal Faces, Audrey C. Rule Jan 1999

Crystal Shape Bingo: A Bingo Game For Teaching Recognition Of Three-Dimensional Crystal Shapes And Planar Geometric Shapes Of Crystal Faces, Audrey C. Rule

Open Educational Resources

This document describes a game that provides students with practice in recognizing three dimensional crystal shapes and planar geometric shapes of crystal faces. It contains information on the objective of the game, game preparation, and rules for playing. Play cards are included (four to a page).


Literature-Based Language Arts Extended To Mathematics, Carrie L. Johnson Jan 1999

Literature-Based Language Arts Extended To Mathematics, Carrie L. Johnson

Graduate Research Papers

A literature-based language arts program provides opportunities for children to create meaning through quality literature experiences. Children's learning is integrated, and connections are made across the curriculum. The mathematics and language process are related and can be integrated into units of study through the genres of literature.

A unit of study on circles provided kindergarten children with quality literature and related expressive activities that facilitated the understanding of the concept of circle. As a result of this literature-based language arts program extended to mathematics, children's knowledge was integrated, peer interaction increased, and the reading-writing processes were connected. Children's enthusiasm for …


Literature-Based Language Arts Extended To The Science Area : Backyard Unit, Grade 2, Suzanne Jensen Jan 1999

Literature-Based Language Arts Extended To The Science Area : Backyard Unit, Grade 2, Suzanne Jensen

Graduate Research Papers

This paper explores the process of integrating second grade language arts into a science unit through a literature base representative of the different genres. This experience will provide students with the opportunities to connect the content of a backyard theme with quality literature and related expressive activities. From the supporting professional references cited, it becomes clear that students' positive interactions with literature develop self-motivated learners.


Integrating Literature-Based Language Arts And Mathematics, Lora L. Irvine Jan 1999

Integrating Literature-Based Language Arts And Mathematics, Lora L. Irvine

Graduate Research Papers

The National Counsel of Teachers in Mathematics in 1989 developed a list of 13 mathematical standards that would lead to a more effective way to teach mathematics. Before they began their list of standards, they made a list of goals. These goals stressed the importance of making learning relevant to the learner.

The goals that the NCTM developed are similar to the theoretical formulations that support instruction in the language arts. Many leading authorities in language arts advocate an instructional program that extends literature-based language arts across the curriculum. The content areas provide content and experiences with the functions of …


Integrated Science Unit : Ponds And Water, Evelyn K. Oliver Jan 1999

Integrated Science Unit : Ponds And Water, Evelyn K. Oliver

Graduate Research Papers

This instructional development project integrated the language arts and the science areas. The science content was ponds and water from the second grade curriculum. A rich learning environment was provided through a literature base, representing the different genres and related expressive activity. The unit was presented through teacher-directed activity and learning centers that offered many options from which children could select experiences.

The goals of the program were to give children more control over their learning and to extend children's thinking-language abilities by capitalizing on the common processes of the language arts and science areas and offering many opportunities to …


Meiosis: The Analysis Of Using A Modified Teaching Approach, Christine Marie Graf Jan 1999

Meiosis: The Analysis Of Using A Modified Teaching Approach, Christine Marie Graf

Dissertations and Theses @ UNI

It is well documented that to successfully learn genetics an understanding of meiosis is often thought necessary, and to effectively learn meiosis, knowledge ofDNA structure is also thought to be necessary. Based on student misconception research, recommendations for teaching meiosis suggests several modifications of the teaching approach. This study investigated whether the concept of meiosis could be learned successfully by the use of a modified teaching approach based specifically on research recommendations. Modifications included (a) using student generated diagrams, (b) reducing the amount of vocabulary, ( c) clarifying and differentiating the terms used, ( d) using the cell cycle to …


Two Current Approaches To Science In Early Education : The Physical-Knowledge Approach By Kamii And Devries And The Science Education Approach By Diane Dodge, Seon Chun Jan 1999

Two Current Approaches To Science In Early Education : The Physical-Knowledge Approach By Kamii And Devries And The Science Education Approach By Diane Dodge, Seon Chun

Graduate Research Papers

The primary focus of this paper is to review the characteristics of two science approaches to teaching science to children: the physical-knowledge approach by Kamii and De Vries, and the science education approach by Diane Dodge. Similarities and differences between the two approaches are analyzed. The conclusion of this study found that both approaches emphasize children's active role in learning. However, Kamii and DeVries's physical-knowledge approach emphasizes children's logical reasoning development, while Dodge's science education approach places greater emphasis on content and scientific knowledge.


Integrating Technology Into The Science Curriculum : Environmental Studies Grade 5, Lois Diane Enger Jan 1999

Integrating Technology Into The Science Curriculum : Environmental Studies Grade 5, Lois Diane Enger

Graduate Research Papers

The project was developed to illustrate a process for including hands-on use of technology in an environmental education activity. The requirements for an integrated curriculum identified by McRel are incorporated: science, technology, language arts, math, and life skills. Activities included are discussion of the topic, writing and editing a script, digital photography, computer usage including scanning, on-site visiting, and teacher and student evaluation. The on-site visit was conducted at a nature center.

Classroom activities involved planning, research, storyboarding, organizing visual materials, script writing, and creating a computer-generated presentation using mPOWER, a presentation software program. The completed computer presentation was converted …