Science and Mathematics Education Commons^™

The Influence Of Soil Water Content, Calcite Content, And Temperature On Bulk Electrical Conductivity, Eric C. Brevik, Jaehoon Lee, Thomas E. Fenton, Robert Horton

Journal of the Iowa Academy of Science: JIAS

Electrical conductivity (EC) as measured by the Geonics® EM-38 has shown promise as a soil survey tool. EC is determined by a combination of soluble salts, clay content and mineralogy, water content, and temperature. While investigating use of the EM-38 for soil survey purposes, it is important to understand the relative contribution of each of these variables on EC. A laboratory experiment was set up to determine the relative influence of water content, temperature, and calcite content on EC using time-domain reflectometry (TDR) probes. TDR was used as a proxy for the EM-38 because of the large volume of soil …

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

An Assessment Of Water Quality In Ensign Hollow, Clayton And Fayette Counties, In Northeast Iowa, Rick Klann, Jaime Platts

Journal of the Iowa Academy of Science: JIAS

Water quality and benthic invertebrates in the Ensign Hollow watershed, southwestern Clayton County and southeastern Fayette County, Iowa, were monitored from 2000 to 2001. Measurements of physical and chemical parameters of water quality, as well as analysis of benthic invertebrates, all indicated that streams of the Ensign Hollow watershed were exposed to slight organic pollution. Furthermore, the greatest threat to this watershed appeared to be sedimentation introduced through runoff.

A Framework For Reproductive Models Of Mourning Doves, David L. Otis

Journal of the Iowa Academy of Science: JIAS

Population models can be used to aid in development and evaluation of harvest management strategies for game species. No current models are available for the Mourning Dove (Zenaida macroura), which is considered a migratory game bird in 37 states. A predictive model for annual reproduction is a necessary component of such a model. I used a simple construct based on parameters of the Mourning Dove breeding cycle to develop probability distributions of annual per capita reproduction for each of five geographical regions in the U.S. Confidence intervals for model predictions included average estimates from published studies in all regions except …

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Recent Observations Of The Distribution And Status Of Freckled Madtom And First Record Of Spotted Gar In Iowa, Melvin C. Bowler

Journal of the Iowa Academy of Science: JIAS

The distribution and status of Iowa's fishes were last extensively described in Iowa Fish and Fishing (Harlan et al. 1987). Since then, numerous fish collections have been made in Iowa's interior and bordering rivers and streams. In this paper, I describe recent collections of freckled mad tom (Noturus nocturnus) and spotted gar (Lepisosteus oculatus) from the Upper Mississippi. River (UMR). Six specimens of N. nocturnus were collected from Pool 13 of the UMR in 2001. Although the first documented specimens of N. nocturnus in Iowa were collected in the English River in 1984, few collections have been made throughout the …

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Iowa Academy Of Science 115th Annual Meeting [2003]: Advance Program, Iowa Academy Of Science

Iowa Academy of Science Documents

Contains information about the schedule and presentations for the 2003 annual meeting of the Iowa Academy of Science.

Iowa Academy Of Science 115th Annual Meeting [Program, 2003], Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Program Summary --- 2
General Session Speakers --- 4
Symposia Programs --- 7
Special Panel --- 9
Awards --- 10
Section Programs/Special Sessions/Abstracts --- 11
Agricultural Science (poster) --- 12
Anthropology --- 13
Botany --- 16
Cellular, Molecular & Microbiology and Physiology --- 20
Chemistry: Inorganic, Analytical & Physical --- 23
Chemistry: Organic & Biological --- 23
Conservation --- 25
Engineering --- 29
Environmental Science and Health --- 35
Geology --- 37
Physics --- 41
Physiology (posters) --- 44
Zoology --- 46
Mussel Symposia --- 52
Energy Symposia --- 56
IAS Officers & Directors --- 59
IAS Annual Meeting …

Ua64/2 The Challenge: The Newsletter Of The Center For Gifted Studies (No. 10, Winter 2003, Center For Gifted Studies, Tracy Inman Editor

Gifted Studies Publications

No abstract provided.

Reflections On Mentoring Undergraduate Research, D. Allan Butterfield

Kaleidoscope

No abstract provided.

Reflections On Mentoring Undergraduate Research, Robin L. Cooper

Kaleidoscope

No abstract provided.

Effectiveness Of Educator-Oriented Content Courses, Joslyn K. Burt

Presidential Scholars Theses (1990 – 2006)

The idea of teaching science strikes fear into the hearts and minds of many elementary teachers; however, as a core piece of the overall curriculum, they cannot escape teaching science. The courses taken at the university and the professional development classes taken on the job play a critical role in helping educators feel comfortable teaching science. Such courses also impact how the content is taught by introducing the best practices used in science teaching.

As a Basic Science Minor in the College of Education at the University of Northern Iowa, I have taken many science content courses and several courses …

Lessons Learned In A Math Excel Workshop: The Importance Of Maintaining High Cognitive Demands, T. Dick

Journal of Mathematics and Science: Collaborative Explorations

Uri Treisman's Emerging Scholars Workshop model has been implemented on many college campuses over the last twenty years. The Treisman model is based on groups of students meeting regularly in a social atmosphere to work collaboratively in solving challenging mathematics problems related to their introductory coursework. Emerging Scholars Programs (or Math Excel as it is called in many settings, including ours) have been particularly successful in increasing the academic success and participation of underrepresented groups in mathematics. The primary responsibilities of a workshop leader include the design of a session’s worksheet, as well as the facilitation of students' problem solving …

Contents

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

Making Upper Division Mathematics Courses Relevant For Pre-Service Teachers, G. Hill

Journal of Mathematics and Science: Collaborative Explorations

This article addresses the disconnect that in-service and pre-service secondary school teachers feel between the material presented in upper division mathematics courses and high school classroom practice. Two examples are given from an abstract algebra course in which this problem is addressed.

Geosciences For Elementary Educators: A Course Assessment, M. L. Cummings, M. Goodrich, D. Burmester

Journal of Mathematics and Science: Collaborative Explorations

Geosciences for Elementary Educators engages future elementary teachers in a hands-on investigation of topics aligned with the third and fifth grade Earth/Space Science and Scientific Inquiry benchmarks of the Oregon Content Standards. The course was designed to develop the content background of elementary teachers within the framework of the science described in the content standards, to provide an opportunity for future teachers to explore the content area in relation to what takes place in the classrooms of elementary schools, and to initiate a community of learners focused on teaching science to elementary students. The course focused on four themes: the …

Visualizing Basic Nuclear Reactions, D. Allen, M. T. Oliver-Hoyo

Journal of Mathematics and Science: Collaborative Explorations

There are few instructional tools available to teach basic nuclear reactions to beginning students. The activity described in this paper can be used to help students visualize and write basic nuclear reactions such as alpha, beta, and positron decay, as well as electron capture. These reactions are represented using the technology of thermochromic paints, which either change color or turn colorless depending upon the temperature. By using a special thermochromic paint that turns colorless upon heating, students are able to visualize nuclear interactions. For instance, when positron decay occurs, the object depicting a proton will "decay" into a neutron by …

Understanding Teacher Reflection As A Significant Tool For Bringing Reform-Based Teaching To College Mathematics, K. Jeon

Journal of Mathematics and Science: Collaborative Explorations

This paper describes a senior mathematics professor’s effort to change his teaching practice in a mathematical analysis course for secondary pre-service teachers in alignment with the current reform movement. Data include semester-long observations and interviews with the professor and his students. The data were analyzed by the use of reflection as the most significant tool for examining his experience of bringing about change. The reflection was used as a bridge from theory to practice by serving as a significant point for the professor to experience the process of professional development in a real sense. Discussions include the role of teacher …

Student Work Section, R. Howard

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

Recruiting More Mathematics Teachers Using Collaboration As The Main Ingredient: An Effective Model From Missouri, L. Kaiser

Journal of Mathematics and Science: Collaborative Explorations

A National Science Foundation grant was designed to develop a series of courses to connect mathematics concepts taught in middle school classes with actual class materials used at the middle school level; however, a second component of the grant focused on efforts to recruit more teachers into the field of mathematics. By collaborating with several groups across Missouri, several strategies were developed that were shown to have positive results, both in increasing awareness of mathematics teacher shortage issues, and in encouraging attendance in Missouri mathematics education programs. The strategies developed were easy to implement and low in cost. The Missouri …

The Perfect Perspective: A Mathematical Analysis Of Perspective Using Tools Available To Middle School Students, W. Griffin

Journal of Mathematics and Science: Collaborative Explorations

This paper examines the basic properties of perspective drawings, the history of perspective drawings, and the basic mathematics of perspective. Using a side view and a top view of a three-dimensional projection, similar triangles can be used to find distances from the axes and vanishing point in a projection. By breaking the three-dimensional projection into two, two-dimensional planes, one can recreate projections based on actual figures, or create placements of figures in real space based on a projection. Using this method, one 'can change a projection based on the changing position of the vanishing point. This simple approach to perspective …

Lessons Learned From Efforts At Institutional Change: Case Studies Of Six Ocept Institutions, T. G. Chenoweth, M. K. Kinnick, R. D. Walleri

Journal of Mathematics and Science: Collaborative Explorations

As one part of a multifaceted evaluation of the Oregon Collaborative for Excellence in the Preparation of Teachers (OCEPT), a case study approach was used to enable a deeper understanding of how a diverse group of six institutions attempted to achieve OCEPT goals and to learn more about factors that facilitated or hindered their efforts. Multiple sources of data were used, with heavy reliance on a series of on-site interviews. The analytical framework included a "depth" and "pervasiveness" typology of institutional change and a view of change as encompassing "meaning," "organization," and "effects." While goals and accomplishment levels, as well …

Middle School Student Attitudes Towards Robotics, Science And Technology, J. Jill Rogers

Masters Theses

In 2000, the National Science Foundation (NSF) conducted a biennial study on the status of women and minorities in science and engineering. It was revealed that the numbers of women receiving bachelor's degrees in computer science are on the decline. This fact calls for innovative changes in the traditional science curriculum. Science instruction with the implementation of robotics could provide female students the needed motivation. Therefore, the examination of female middle school student attitudes towards robotic enhanced science instruction is needed. Descriptive research was conducted to assess middle school student attitudes towards robots, technology and science. Gender differences were studied. …

Teachers' Implementation Of Inquiry In Elementary Science Education, Maria De Freece Lawrence

Educational Studies Dissertations

This research was an exploratory study of elementary school science education as implemented by five exemplary teachers in grades one through five, situated in four school districts of a Rhode Island Local Systemic Change initiative. This study sought to characterize the presence of inquiry-based teaching consistent with the tenets of constructivism and scientific inquiry as expressed in the book Inquiry and the National Science Foundation Standards: A Guide for Teaching and Learning (National Research Council, 2000)

A Model Integrated Science Guide For Junior High General Education Classroom Teachers In The Tahoma School District, Angela M. Delgado

All Graduate Projects

Teaching concepts in science that incorporated different science disciplines were studied and placed into practice at Tahoma Junior High School, Maple Valley, Washington. This form of integrated teaching was displayed in an integrated science model unit. The integrated teaching was displayed in an integrated science model unit. The integrated science model unit detailed river systems and the many different sciences that play a role in creating the river environment we see daily. Research showed students learned as well if not better in integrated science classrooms when compared to students who fulfilled the traditional sequence of science classes. Moreover, brain research …

Nebraska Summary 441: Fendt 714 Vario Diesel, 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 …

Test 1828: Case Ih Mx 285 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.