Science and Mathematics Education Commons^™

Narrow Sense Heritability And Additive Genetic Correlations In Alfalfa Subsp. Falcata, Heathcliffe Riday, E. Charles Brummer

Journal of the Iowa Academy of Science: JIAS

The complex genetics of autotetraploid alfalfa (Medicago sativa L.) make additive genetic variance component estimation difficult. Halfsib family variances often are used to estimate additive genetic variances and, by extension, narrow sense heritabilities and additive genetic correlations. These estimates contain a portion of the dominance variance. Using such calculations, in conjunction with parent-offspring covariance estimates, the dominance component can be separated from the additive genetic component. This is rarely done. This study reports average estimates across 30 populations, of both additive and dominance variance component estimates based on between halfsib family variance and parent-offspring covariance for biomass yield, plant height, …

Fall And Winter Food Habits Of Bobcats (Lynx Rufus) In Iowa, Kelcey J. Brockmeyer, William R. Clark

Journal of the Iowa Academy of Science: JIAS

The bobcat (Lynx rufus) is a widely distributed native felid of North America but nearly disappeared from Iowa due to habitat loss and unregulated harvest that occurred during the century after European settlement. Bobcats are repopulating the state and are now relatively common in southern Iowa. This study was part of a research project to understand the ecology of the species in Iowa's landscape so that conservation plans could be established. We determined food habits by the examination of stomach contents from 100 bobcat carcasses that were accidentally killed in traps, killed by automobiles, or radio-marked individuals found dead during …

Using Dragonflies As Common, Flexible, And Charismatic Subjects For Teaching The Scientific Process, Paul Switzer

Faculty Research & Creative Activity

No abstract provided.

Assessing Online Assessments: A Comparison Study Of Math Assessment Tools For Third-Grade Students, Tina Kim Chan

Theses Digitization Project

The study reported here examined the move towards online assessments and addressed the question of whether or not different assessment tools affect student scores and student learning. The research activities covered a three-week period, from June 5, 2006 to June 23, 2006. During this time, seventeen third grade students served as their own control group by taking several math tests online and several math tests with paper and pencil. Results were compared to see if performance on computer-based tests would be more successful than pencil-and-paper tests. A follow-up survey to evaluate and interpret the quantitative results was also used. Findings …

Nebraska Summary: S647 Agco Rt155a, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Teaching And Learning The Concept Of Area And Perimeter Of Polygons Without The Use Of Formulas, Jamie Robin Anderson Mickens

Theses Digitization Project

The purpose of this study was to increase the student's understanding of the measures of area and perimeter of polygons. The goal of the project was to create a supplemental geometry unit to develop the concept of the area and perimeter of a polygon without the use of formulas and numbers and to measure the effectiveness of this unit on student understanding. Two high school geometry classes with under 28 students each participated in this study.

Increasing Pre-Service Teacher Science Test Success With A Tutorial Cd, William Robertson, Brian Giza, Stephanie Kuehne

Selected Works Temporary Series

Pre-service teachers often perform poorly on high-stakes state certification exams. Noting that there were a few particular items and concepts that seemed to be the most problematical, the authors developed a n HTML and flash-based tutorial CD that contained supplementary video and reference materials designed to assist the prospective teacher in preparing for the exam. Research subjects were studied for their preparation for self-regulated learning, as well as language environment, content background, and other factors. Data from scores on the teacher certification exam was correlated with CD use and demographics to identify the effectiveness of the CD tool as an …

El Uso De Preguntas Y Descubrimiento En El Contexto De Química, William Robertson

Selected Works Temporary Series

This article, written in Spanish, describes the impacts of an effort to increase the teaching abilities of a group of Chemistry Peer Leaders working with undergraduates in fundamental Chemistry classes. The provided abstracts, in Spanish and English, describe the overall approach and the results obtained from the study done in the fall of 2005. A partnership between the College of Education and the College of Science at the University of Texas at El Paso (UTEP) which was developed in order to strengthen the pedagogical methods within the context of chemistry content for student Peer Leaders. The goal was to enhance …

Field-Based Science Education With A Community Service Learning Focus, William Robertson

Selected Works Temporary Series

Field-based program of studies for future teachers provides opportunities for powerful learning through a dialectical union of reflection and action. Methods courses in academic disciplines are linked with seminars and coursework on community partnerships, critical pedagogy and culturally responsive education. This article illustrates the processes of planning, implementation and evaluation of this approach, highlighting the impacts of community service learning on parents, families, students, and schools with a focus on validating native language literacy, increasing parental involvement and providing conceptually correct science education. The project indicates that two-way dual language programs with a strong parent engagement component can help improve …

Using The Concrete-Representation-Abstract Instruction To Teach Algebra To Students With Learning Disabilities, Edward William Sung

Theses Digitization Project

This project explored the Concrete to Representational to Abstract instruction (CRA instruction) as a strategy to teach abstract math concepts for secondary students with learning disabilities. Through the review of literature, multiple researchers suggested that students with learning disabilities need to be exposed to a variety of instructional strategies to develop problem solving skills in algebra concepts.

A Comparison Of Traditional Animal Dissection And Computer Simulation Dissection, Debra Elisabeth Kiehl

Theses Digitization Project

The purpose of this study was to compare instructional effectiveness of traditional animal dissections and computer simulation dissections related to student achievement and attitudes.

Researchers Scrutinize Environmental Programs In American Academia, Aldemaro Romero Jr., Michel Conner

Publications and Research

No abstract provided.

The Ground We Walk On: An Effective Analogy For Exploring Soil Characteristics, Sally Wilson, Meher Vani Bojja

Iowa Science Teachers Journal

Soil is common to all of us, so common that few people think about it and its importance in our everyday lives. The activity presented here provides an analogy useful for helping students design experiments and explore how soil particle size affects its behavior. Originally a simple “cookbook” demonstration for community college students, we restructured it to be more inquiry oriented so that it mentally engages students and promotes several important goals for science teaching. We believe the modified activity is applicable across a broad grade/age range, perhaps from upper elementary to some introductory post-secondary science courses. This activity promotes …

Effect Of Implementing Project-Based Education In High School Physics : File Folder Bridge Engineering , Amy P. Muzzarelli

Dissertations, Master's Theses and Master's Reports - Open

Project-based education and portfolio assessments are at the forefront of educational research. This research follows the implementation of a project-based unit in a high school physics class. Students played the role of an engineering firm who designed, built and tested file folder bridges. The purpose was to determine if projectbased learning could improve student attitude toward science and related careers like engineering. Teams of students presented their work in a portfolio for a final assessment of the process of designing, building and testing their bridges.

Asu Course Will Teach Scientists How To Communicate Their Ideas, Aldemaro Romero Jr., Amy R. Pearce, John B. Zibluk

Publications and Research

No abstract provided.

Promoting Undergraduate Research In Mathematics At The University Of Nebraska – Lincoln, Judy L. Walker, Glenn Ledder, Richard Rebarber, Gordon S. Woodward

Department of Mathematics: Faculty Publications

The Department of Mathematics at the University of Nebraska – Lincoln (UNL) has several programs which promote undergraduate research in a variety of ways. Two of these are summer programs which draw from a national applicant pool: The Nebraska REU in Applied Mathematics (Section 1) is a traditional NSF-funded REU site, and Nebraska IMMERSE (Section 2) offers a summer “bridge” program (with a research bent) for students about to start graduate school in mathematics. IMMERSE is a relatively new program, started in 2004 as part of the department’s Mentoring through Critical Transition Points (MCTP) grant from NSF. The MCTP grant …

Laboratory Abrasion Of Crinoid Columnals And The Provenance Of The Chariton Conglomerate, South-Central Iowa, Justin C. Kraber, Steven H. Emerman, Matt R. Bennett, Lyndon R. Hawkins, Jewell E. Moore, Rebekah Ellenwood, Kristine L. Robson, Adam Finken

Journal of the Iowa Academy of Science: JIAS

The Chariton Conglomerate is a quartz limestone conglomerate of Pennsylvanian age found in six exposures in southern Iowa and three exposures in northern Missouri. Distinctive features of the exposures in Iowa include quartz granules and rounded crinoid columnals. The objective of this study was to determine whether the quartz clasts could have originated in the crystalline rocks of Minnesota or Wisconsin. The average paleocurrent direction measured in interbedded sandstones was 178° (S.D. = 35 °). The average roundness of 75 crinoid columnals extracted from four exposures in Iowa was 30% (S.D. = 14%), defined as

roundness(%) = (D-d)/D x 100, …

Tv Shows On Science, Aldemaro Romero Jr., Jane Anfinson

Publications and Research

No abstract provided.

A-State To Celebrate Year Of Science 2009 With Several Activities. Celebration Will Include Whale Dissection, Aldemaro Romero Jr., John M. Pratte

Publications and Research

No abstract provided.

Proceedings Of The 119th Annual Meeting Of The Iowa Academy Of Science [Program, 2007], Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Welcome from the Executive Director --- 3
Program Summary/Timeline --- 4
Iowa Junior Academy of Science --- 6
General Session Presentations --- 7
Symposia Presentations --- 10
Senior Poster Program --- 14
Awards Luncheon --- 16
President's Banquet --- 16
IAS Annual Business Meeting --- 17
2006-2007 Officers and Volunteers --- 18
Notes --- 19
Field Trips --- 20
Section Meeting Programs and Oral Presentations (Alphabetical by Section) --- 22
Abstracts (by Section) --- 27
Author Index --- 53

Nebraska Summary: S589 Agco Rt165a, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

An Augustinian Perspective On The Philosophy Of Mathematics, James Bradley

ACMS Journal 2007

From a Christian perspective, both modern and post-modern approaches to the philosophy of mathematics have significant shortcomings. This paper explores an alternative. It summarizes Augustine of Hippo’s views on the four classical themes of the philosophy of mathematics-the ontology of mathematical objects, their epistemology, the nature of truth in mathematics, and how we account for the effectiveness of mathematics in describing the natural world. It then traces what has happened to Augustine’s perspective in the roughly 1600 years since it was written concluding with a discussion of some spiritual and intellectual problems with the currently dominant secular perspective.

From Observers To Participants: Joining The Scientific Community, Catherine A. Reinke, Susan R. Singer, Carl Mcdaniel, Carolyn J. Ferguson, Julia Vandermeer, Adam Williamson

Faculty Publications

In this essay, we have integrated the voices of our mentors and students to explore 45 years of undergraduate research experiences and their role in shaping our scientific community. In considering our collective experiences, we see undergraduate involvement in research as a rich source of community development, one that has both touched our lives and influenced our teaching.

Iowa Academy Of Science: The New Bulletin, V03n4, Winter 2007, Iowa Academy Of Science

New Bulletin

Inside This Issue:

--Message from the Executive Director

--Focus on an Institutional Member

--120th Annual Meeting of the Iowa Academy of Science

--GLOBE Activities for You and YOUR Students

--Committee on Committees and Elections Report to the Iowa Academy of Science Membership

--Financial Statement

--New Member Referral Program Report

Thailand Ties, Raymond J. Dagenais

Publications & Research

One of the resolutions I witnessed moving forward at the Summer 2006 National Congress on Science Education in Toronto, Canada involved expanding our learning through international collaborations. The Congress encouraged National Science Teacher Association affiliates to make an effort to connect with educators in other countries in order to both learn and share ideas and issues facing the science education community. With the already large numbers of students from other cultures in many school systems in the United States and the increasing quality of students coming out of science programs in other countries, it has become imperative that we better …

Increasing Pre-Service Teacher Science Test Success With A Tutorial Cd, William Robertson, Brian Giza, Stephanie Kuehne

Departmental Papers (TE)

Pre-service teachers often perform poorly on high-stakes state certification exams. Noting that there were a few particular items and concepts that seemed to be the most problematical, the authors developed a n HTML and flash-based tutorial CD that contained supplementary video and reference materials designed to assist the prospective teacher in preparing for the exam. Research subjects were studied for their preparation for self-regulated learning, as well as language environment, content background, and other factors. Data from scores on the teacher certification exam was correlated with CD use and demographics to identify the effectiveness of the CD tool as an …

Experiential Programs: Best Practice: Effective Programs Are Experiential, Allison Brody

Education about the Environment

“Teaching by pouring in” refers to a medieval belief that we could teach people by drilling holes in the human head and, with a funnel, pour information into the brain. We laugh at this idea, yet we still see educators and interpreters use passive instruction to “fill up” the brains of their audiences.

Think back on how you learned to ride a bicycle. You took an action, saw the consequences of that action, and chose either to continue or to take a new and different action. What allowed you to master the new skill of riding a bicycle was your …

America's Lost Landscape: The Tallgrass Prairie Activity Guide, University Of Northern Iowa. Tallgrass Prairie Center.

K-12 Curriculum Supplements

This book is a K-12 curriculum supplement developed by the Tallgrass Prairie Center at the University of Northern Iowa to accompany the film, America's Lost Landscape. The activity guide was used in the educators' workshop held at the University of of Northern Iowa in fall 2007.

Reinventing A Level 7 Programme In Electrical Engineering And Greatly Improving On Student Retention, Eugene Coyle, Mike Murphy, Frank Costello, Leslie Shoemaker

Books/Book chapters

Following the successful implementation over a number of decades of a three-year Diploma in Electrical and Control Engineering at Technological University Dublin, the programme entered a period of extreme difficulty and uncertainty in the late nineteen ninetees and early years of the new millennium. As with many such engineering programmes, student numbers seeking to enter began to diminish. Furthermore, engagement and retention of students who had enrolled on the programme became evermore challenging, necessitating some radical moves in the formation and operation of the programme and in putting additional student support mechanisms in place. The situation hit rock bottom between …

Dna: Modeling Structure And Function, Jennifer A. R. Smith, Cynthia J. Martin

Iowa Science Teachers Journal

This article presents a developmentally appropriate approach to introduce high school biology students to the structure of DNA and illustrate how its structure and function are related. We address the importance of beginning instruction with a concrete representation of DNA, and using it to scaffold to several important biological concepts. We also make clear the teacher's crucial role in this scaffolding process. This article promotes National Science Education Content Standards C and G, and Iowa Teaching Standards 1, 2, 3, 4, and 7.