Open Access. Powered by Scholars. Published by Universities.®

Education Commons

Open Access. Powered by Scholars. Published by Universities.®

Theses/Dissertations

Iowa State University

Curriculum and instruction

Science and Mathematics Education

Articles 1 - 30 of 32

Full-Text Articles in Education

Investigating The Impact Of Teachers' Implementation Practices On Academic Achievement In Science During A Long-Term Professional Development Program On The Science Writing Heuristic , Murat Gunel Jan 2006

Investigating The Impact Of Teachers' Implementation Practices On Academic Achievement In Science During A Long-Term Professional Development Program On The Science Writing Heuristic , Murat Gunel

Retrospective Theses and Dissertations

This study is a part of a bigger project known as the Science Writing Heuristic (SWH) Partnership Professional Development Project, conducted at Iowa State University and the University of Iowa in association with the Iowa Department of Education to help improve science teaching. Overall, the goal of the project is to help practicing science teachers understand and apply a student-oriented instructional approach, using the SWH. The purpose of this research study was to examine the link between teachers' implementation of a student-oriented teaching approach through the SWH approach with embedded non-traditional writing practices and students' performances on standardized tests over ...


The Iowa Chemistry Education Alliance, Icea: Process And Product , Kathleen Annette Burke Jan 2005

The Iowa Chemistry Education Alliance, Icea: Process And Product , Kathleen Annette Burke

Retrospective Theses and Dissertations

The Iowa Chemistry Education Alliance, ICEA, supported by Department of Education Star Schools funding (R203F5000198), was both a Process and a Product.;The Process included: (a) Design and support of high school teacher training sessions that incorporated distance learning techniques, cooperative learning and guided inquiry strategies, and a constructivist, student-centered classroom focus; (b) Design and incorporation of eight supplemental learning modules, corresponding assessment rubrics, and supporting videotapes into the existing Iowa high school chemistry curriculum; (c) Adaptation of the learning modules throughout the course of the academic year while the units were being integrated into the existing curriculum; (d) Modification ...


Where Is The "Self" In Teacher Self-Assessment?: An Examination Of Teachers' Reflection And Assessment Practices In Relation To Their Teaching Practices , Andrea Jean Madsen Jan 2005

Where Is The "Self" In Teacher Self-Assessment?: An Examination Of Teachers' Reflection And Assessment Practices In Relation To Their Teaching Practices , Andrea Jean Madsen

Retrospective Theses and Dissertations

The purpose of this study was to identify the levels of explicit reflection-on-action and criteria with which teachers self-assess their teaching, and to compare these levels and criteria to classroom practices. These reflections and practices were then compared to the participants' preservice preparation to determine the extent to which strategies taught transferred to classroom practice. To investigate these issues, this study utilized classroom observations, interviews, and relevant documents from thirteen second-, third-, fourth-, or fifth-year teachers who had graduated from a traditional elementary teacher education program at a landgrant university in the Midwestern United States. Classroom observations were rated using ...


A Study Of The Practices Of Three Science Teacher Educators: The Rule, "Do As I Say, Not As I Do," Ought Not Be The Message , Crystal Noelle Bruxvoort Jan 2005

A Study Of The Practices Of Three Science Teacher Educators: The Rule, "Do As I Say, Not As I Do," Ought Not Be The Message , Crystal Noelle Bruxvoort

Retrospective Theses and Dissertations

This study explored the development of three science teacher educators as they interacted with preservice teachers while seeking to align their practices with what they were advocating in the elementary science methods courses that they taught. Practices that were advocated by the methods instructors were consistent with research-based teaching and goals of the science education community. The exploratory nature of this study warranted a qualitative research design using a grounded theory approach. Practices of the participants were observed during one aspect of the methods course---an oral defense---that served as the culminating evaluation of students' understanding. Evidence exists to support that ...


Impact Of Available Interactivity Options On Student Learning And Discussions In Online Physics Courses , Deanna L. Snyder Poudel Jan 2005

Impact Of Available Interactivity Options On Student Learning And Discussions In Online Physics Courses , Deanna L. Snyder Poudel

Retrospective Theses and Dissertations

Community colleges are offering more online courses to meet the demands of the students they serve. To make these courses effective learning experiences, instructors are trying to utilize technologies and strategies to bring distance students into a virtual community where learning can best take place. This study examines the impact of adding a virtual class lecture/discussion and virtual office hours to two online physics courses offered through an urban community college. Two different courses were taught with two sections each. One section of each course added the virtual sessions for up to 4 hours per week. Effects studied include ...


Examining The Use Of Computer Simulations To Promote Learning Of Electrochemistry Among College Students , Han-Chin Liu Jan 2005

Examining The Use Of Computer Simulations To Promote Learning Of Electrochemistry Among College Students , Han-Chin Liu

Retrospective Theses and Dissertations

When computer simulations are popular in helping students understand chemistry in today's classrooms, it is important to realize how instructional use of computer simulations affects students' understanding of science. This dissertation centers around the impact of the use of computer simulations on college students' learning. Chapter 1 generally addresses the background and the significance of the research topics. Chapter 2 reviews the literature from research that studied the factors that affect the use of computer simulations in helping students learn science. Learners were found to understand science theories better with descriptions and explanations presented in both verbal and visual ...


Inservice Teachers' Implementation Of The Science Writing Heuristic As A Tool For Professional Growth , Sozan H. Omar Jan 2004

Inservice Teachers' Implementation Of The Science Writing Heuristic As A Tool For Professional Growth , Sozan H. Omar

Retrospective Theses and Dissertations

According to the National Science Standards, science educators have been calling for the inclusion of inquiry-based approaches in science classrooms as a reform for science instruction. Teachers' reluctance to implement inquiry-based approaches may be attributed to the different interpretations of the underpinning theory. Any efforts to help teachers implement effective teaching approaches, therefore, should not target merely additive skills; rather, such efforts should foster fundamental changes of beliefs, knowledge, and habits of practice that teachers deeply hold.;This study is a part of a bigger project known as the Science Writing Heuristic (SWH) Partnership Professional Development Project, conducted at Iowa ...


Enhancing Science Literacy Through Implementation Of Writing-To-Learn Strategies: Exploratory Studies In High School Biology , Liesl Marie Hohenshell Jan 2004

Enhancing Science Literacy Through Implementation Of Writing-To-Learn Strategies: Exploratory Studies In High School Biology , Liesl Marie Hohenshell

Retrospective Theses and Dissertations

Some evidence of benefits from writing-to-learn techniques exists; however, more research is needed describing the instructional context used to support learning through writing and the quality of learning that results from particular tasks. This dissertation includes three papers, building on past research linking inquiry, social negotiation, and writing strategies to enhance scientific literacy skills of high school biology students. The interactive constructivist position informed the pedagogical approach for two empirical, classroom-based studies utilizing mixed methods to identify quantitative differences in learning outcomes and students' perceptions of writing tasks. The first paper reports students with planned writing activities communicated biotechnology content ...


Developmental Changes And Gender Effects On Motivational Constructs Based On The Expectancy-Value Model In Czech And Us Students Regarding Learning Of Science, Mathematics, And Other Subjects , Eun-Mi Yang Jan 2003

Developmental Changes And Gender Effects On Motivational Constructs Based On The Expectancy-Value Model In Czech And Us Students Regarding Learning Of Science, Mathematics, And Other Subjects , Eun-Mi Yang

Retrospective Theses and Dissertations

This study employed American and Czech student samples to investigate the motivational constructs used in Eccles and Wigfield's (1983) expectancy-value model. To predict achievement behavior, the model specifies relationships among expectancy for-success and task value, task-specific self-concept, perception of task-difficulty, perceptions of social environment, and interpretations and attributions for past events in relation to the social world. Czech and American students (n = 1,145) in grades 4--12 were the participants in this study. The causal relationships among the constructs were tested to investigate structural similarities and differences in the models for both countries. This study also explored developmental changes ...


An Ecological Perspective Of Science And Math Academic Achievement Among African American Students , Endya Bentley Stewart Jan 2000

An Ecological Perspective Of Science And Math Academic Achievement Among African American Students , Endya Bentley Stewart

Retrospective Theses and Dissertations

Using data from the National Education Longitudinal Study of 1988 (NELS:88), path analytic procedures were performed to test an ecological model of the effects of family, individual and school characteristics on the academic African American students. A distinctive study is the inclusion of school computer use in the model. The study results show that several of the variables directly or indirectly affected 12th grade academic achievement. Furthermore, most of the individual influence variables were directly related to 12 th grade achievement. Two surprising findings from this study were the insignificant effects of family income and school computer use on ...


Internet-Based Instruction In College Teaching , Kathleen Flickinger Jan 1999

Internet-Based Instruction In College Teaching , Kathleen Flickinger

Retrospective Theses and Dissertations

Distance education and Internet instruction are increasingly being used in college science teaching. In an effort to reach more students, Iowa State University's Human Anatomy and Physiology course was offered via Internet as well as via traditional lecture format. To assess the educational ramifications of this offering, three studies were conducted. In the first study, a collective case study approach was utilized to describe the learning environment created by an Internet-based college science course. In this study, three students were followed as they worked their way through the course. Collective case study methodologies were used to provide a rich ...


A Tangled Web: Interactions And Structures In University-School Collaborations , Christina Pickerell Ohana Jan 1999

A Tangled Web: Interactions And Structures In University-School Collaborations , Christina Pickerell Ohana

Retrospective Theses and Dissertations

In this volume, I examine some of the structures and beliefs embedded in a university-school partnership. I try to untangle the complex web of interests, ideologies, and information that participants bring to the project. This dissertation includes three research papers. In the first paper, "Integration of Theory with Practice: A Comparison of Two Science Methods Courses," I studied the work of students in two science methods courses. One class was a preservice cohort involved in an experimental program with significant levels of field experiences. Their work was compared to students in the regular program who have a modest field component ...


A Comparison Of The Effects Of Using Interactive Www Simulations Versus Hands-On Activities On The Conceptual Understanding And Attitudes Of Introductory Statistics Students , Barbara Dombroski Barnet Jan 1999

A Comparison Of The Effects Of Using Interactive Www Simulations Versus Hands-On Activities On The Conceptual Understanding And Attitudes Of Introductory Statistics Students , Barbara Dombroski Barnet

Retrospective Theses and Dissertations

Researchers have found that students learn better and retain more if the students are engaged in activities that require thinking and processing information, rather than passive learning. With increasingly easy access to computers and with several notable statisticians calling for greater computer use in statistics courses, it makes sense for some of these activities to be computer based. Currently, several World Wide Web (WWW) sites provide Java simulations covering statistical topics, which may be used in statistics courses. The present study investigates whether WWW simulations lead to improved understanding of statistical concepts in comparison to hands-on activities and also what ...


An Investigation Of A Manipulative Simulation In The Learning Of Recursive Programming , Randall Wayne Bower Jan 1998

An Investigation Of A Manipulative Simulation In The Learning Of Recursive Programming , Randall Wayne Bower

Retrospective Theses and Dissertations

Recursion is a fundamentally important topic in Computer Sciences; Even so, it is often omitted in introductory courses, or discussed only briefly. This is likely due, at least in part, to the fact that teaching recursion has been difficult. Perhaps the biggest problem in teaching recursion is that there are few, if any, naturally existing examples of recursion in our lives. However, successful simulations have shown that the computer may hold the key to solving this problem. A simulation of recursion presented to students before formal classroom instruction can provide a foundation of concrete experiences to build upon. The challenge ...


The Effects Of Computer Simulation Models On Middle School Students' Understanding Of The Anatomy And Morphology Of The Frog , Joseph Paul Akpan Jan 1998

The Effects Of Computer Simulation Models On Middle School Students' Understanding Of The Anatomy And Morphology Of The Frog , Joseph Paul Akpan

Retrospective Theses and Dissertations

Science teachers, school administrators, educators, and the scientific community are faced with ethical controversies over animal dissection in school biology classrooms. Computer simulation has been proposed as a way of dealing with this issue. One intriguing tentative finding in previous research was that use of an interactive videodisc dissection facilitated performance on a subsequent actual dissection. This study was designed to replicate and extend that finding to computer-based dissection. The purpose of this study was twofold: (1) to examine the effectiveness of a computer simulation model of frog dissection in improving students' actual dissection performance and learning of frog anatomy ...


The Effects Of Cognitive Style, Method Of Instruction, And Visual Ability On Learning Chemical Kinetics , Mark D. Lynch Jan 1997

The Effects Of Cognitive Style, Method Of Instruction, And Visual Ability On Learning Chemical Kinetics , Mark D. Lynch

Retrospective Theses and Dissertations

The relationships between cognitive style, method of instruction, and visual skill on learning chemical kinetics were investigated. Participants enrolled in a general chemistry course were classified on each of three factors: cognitive style (field dependent, field neutral, or field independent), method of instruction (computer lesson, teaching assistant, or neither), and visual skill (high visual skill, moderate visual skill, or low visual skill). Participants who were classified as field independent scored significantly higher than those classified as field dependent on the kinetics portions of the hour and final exams. Also, participants who worked with the computer lesson scored significantly higher than ...


Effects Of A Videodisc Problem Solving Approach Embedded In Constructivist-Based Instruction In Mathematics Methods Course On Preservice Teachers' Decisions About Teaching Mathematics Strategies And Attitudes Toward Mathematics And Technologies , Min Kyeong Kim Jan 1997

Effects Of A Videodisc Problem Solving Approach Embedded In Constructivist-Based Instruction In Mathematics Methods Course On Preservice Teachers' Decisions About Teaching Mathematics Strategies And Attitudes Toward Mathematics And Technologies , Min Kyeong Kim

Retrospective Theses and Dissertations

Research on teaching and learning mathematics indicates that offering an appropriate constructivist-based teaching model of mathematics instruction to preservice teachers enhances their teaching abilities and confidence in their future teaching. The purpose of this study was to investigate preservice elementary teachers' decisions about teaching strategies and their attitudes toward mathematics and computer-related technologies in a constructivist-centered methods course which included the use of problem-solving multimedia;This study involved 73 preservice elementary teachers enrolled in an elementary education methods course at Iowa State University. Twenty-eight participants were involved in the treatment group, eighteen students participated in the comparison 1 group and ...


Classnet: A Potential Computer-Mediated Communications Learning Tool In Preservice Teacher Education? , Mark Jay Van Gorp Jan 1997

Classnet: A Potential Computer-Mediated Communications Learning Tool In Preservice Teacher Education? , Mark Jay Van Gorp

Retrospective Theses and Dissertations

This study investigates computer-mediated communications (CMC) in preservice teacher education. Three papers respectively examine current CMC uses and outcomes, describe a new CMC tool which may enhance future use, and present an evaluation of that tool with preservice teachers;The first paper reviews the utilization of CMC in the preservice curriculum and then analyzes occurring problems and assesses resulting needs. The problems are divided into two broad categories: Those that may dissipate with improvement of existing CMC technology and those that may persist even with improved technology. A study of these problems reveals that learning from CMC integration must be ...


Development And Formative Evaluation Of An Instructional Simulation Of Adiabatic Processes , Ying-Shao Hsu Jan 1997

Development And Formative Evaluation Of An Instructional Simulation Of Adiabatic Processes , Ying-Shao Hsu

Retrospective Theses and Dissertations

The purpose of this research was to develop a computer-based instructional simulation of adiabatic processes and to study the effects of selected characteristics of the simulation on students conceptual development, problem solving and transfer. To study these issues the related literature was reviewed, a simulation was developed and a two-pronged research study was employed. From the review of literature and constructivist theory, a simulation to facilitate active and situated learning was developed. It included the features of multiple representations, interaction, and authentic tasks;The subjects for the study were students enrolled in a beginning meteorology course at Iowa State University ...


Authenticity And Technology: Constructing Meaning From An E-Mail Activity, Dawn Marie Sleger Poole Jan 1996

Authenticity And Technology: Constructing Meaning From An E-Mail Activity, Dawn Marie Sleger Poole

Retrospective Theses and Dissertations

This study investigated 28 preservice teachers' involvment in a ten-week long e-mail project linking them with elementary students in a mathematical problem solving activity. The preservice teachers sent mathematical problems each week to their student groups via e-mail. The elementary students solved the problems and responded with their solution and an explanation of their process. Of the college students, three preservice teachers with high levels of mathematics anxiety and three with low levels of anxiety were selected to be examined in case studies. Interviews with the case study participants, as well as data collected from all of the class members ...


Defining Relationships Between Perceived Leader Authenticity, Staff Authenticity And Instructional Leadership In Urban Elementary Schools , Deborah Jean Gettys Jan 1996

Defining Relationships Between Perceived Leader Authenticity, Staff Authenticity And Instructional Leadership In Urban Elementary Schools , Deborah Jean Gettys

Retrospective Theses and Dissertations

This study focused on the role of the elementary principal as the building's instructional leader and the teachers' perception of that role as it relates to a curriculum adoption. The Des Moines Independent Community School District of Des Moines, IA approved a districtwide elementary mathematics curriculum, based on the National Council of Teachers of Mathematics Standards (1989). The adoption represented a major shift in philosophy and approach from past district curricula. Initiatives were launched for staff development, teacher support and parent communication. These district efforts took place in a formal organizational structure of site-based management through shared decision-making (SBM ...


Using A Problem Analysis Model To Enhance Student Learning In Computer Programming , Hsiao-Shen Wang Jan 1996

Using A Problem Analysis Model To Enhance Student Learning In Computer Programming , Hsiao-Shen Wang

Retrospective Theses and Dissertations

Research on computer programming suggests that novice programmers possess inert knowledge when trying to solve programming problems. Moreover, research on teaching and learning computer programming indicates that offering appropriate conceptual models of computer programming concepts to novice programmers enhances their mental models and reduces their misconceptions in computer programming. The purpose of this study was to examine the effectiveness of a problem analysis learning model of computer programming to help novice programmers overcome their inert knowledge and learn a programming language;The problem analysis learning model combines a conceptual model and a holistic instructional approach for computer programming instruction. The ...


Identifying, Attributing, And Dispelling Student Misconceptions In Electrochemistry , Michael James Sanger Jan 1996

Identifying, Attributing, And Dispelling Student Misconceptions In Electrochemistry , Michael James Sanger

Retrospective Theses and Dissertations

This dissertation contains six chapters. The first chapter is a review of the chemical education literature concerning suggestions or personal opinions promoting one pedagogical method of teaching oxidation-reduction reactions or electrochemistry, descriptions of real world examples of oxidation-reduction reactions or electrochemistry, and empirical data aimed at identifying student difficulties or misconceptions related to oxidation-reduction reactions or electrochemistry. The second through fifth chapters contain the results of my research on student misconceptions in electrochemistry as they were submitted for journal publication. The sixth chapter contains an opinion paper concerning the possible mismatch between Science-Technology-Society/ChemCom-based high school chemistry courses and traditional ...


Computational Science Projects And The Development Of Mathematical Problem Solving Skills In Secondary Students , Stephen Andrew Fyfe Jan 1995

Computational Science Projects And The Development Of Mathematical Problem Solving Skills In Secondary Students , Stephen Andrew Fyfe

Retrospective Theses and Dissertations

The computer has great potential as a tool for the teaching of Mathematics; Two tools that can be used to guide the use of the computer in a mathematics classroom are the National Council of Teachers of Mathematics' Curriculum and Evaluation Standards and situated cognition theory. This dissertation will summarize recent research on four computer-based tools in the mathematics classroom: computer simulation, programming, spreadsheet and graphing software, and computer networks. The existing research in each of these areas will be related to the NCTM standards and situated cognition theory. In addition, high performance computing tools and computational science projects will ...


Using Computer Simulations To Enhance Conceptual Change: The Roles Of Constructivist Instruction And Student Epistemological Beliefs, Mark A. Windschitl Jan 1995

Using Computer Simulations To Enhance Conceptual Change: The Roles Of Constructivist Instruction And Student Epistemological Beliefs, Mark A. Windschitl

Retrospective Theses and Dissertations

Students often have difficulty conceptualizing phenomena in science. Research suggests that learners enter the classroom with a range of informal ideas about scientific phenomena and that these ideas affect how the corresponding scientific explanations are learned. These informal ideas or "alternative conceptions" often have the characteristics of being poorly articulated in the mind of the learner and difficult to change. Success in changing alternative conceptions is highly dependent upon instructional method and the type of alternative conception possessed. Additionally, students' epistemological beliefs concerning learning have been shown to affect the likelihood of conceptual change as well as overall achievement;This ...


Interaction Of Socio-Cultural Backgrounds And Beliefs With Conceptions Of The Nature Of Science, Societal Issues, And Instructional Ideology Among Secondary Science Teachers In Zimbabwe , Overson Shumba Jan 1994

Interaction Of Socio-Cultural Backgrounds And Beliefs With Conceptions Of The Nature Of Science, Societal Issues, And Instructional Ideology Among Secondary Science Teachers In Zimbabwe , Overson Shumba

Retrospective Theses and Dissertations

Several scales were administered to 63 secondary science teachers in an inservice degree program to explore a hypothesis that there is an inverse relationship between socio-cultural context and orientation to traditional culture and understanding of the nature of science, awareness of science-technology related societal issues, and instructional ideology preference. A written open ended-question and a focus group interview explored their perceptions concerning interaction of traditional culture and science education. Practically all teachers in the sample gave an example of negative interaction or consequence of traditional beliefs and thinking; teachers believed that indigenous culture and science are two independent and seemingly ...


Analysis Of The Effect Of In-Class Writing On The Learning Of Function Concepts In College Algebra , Bernadette Marie Baker Jan 1994

Analysis Of The Effect Of In-Class Writing On The Learning Of Function Concepts In College Algebra , Bernadette Marie Baker

Retrospective Theses and Dissertations

This study examined the effects of in-class writing to learn mathematics on college students in a college algebra course. The students in the two experimental groups wrote explanatory responses to prompts regarding a topic discussed in class the previous day twice a week for eight weeks. The teacher read and responded to all writing assignments the next day. The two control groups spent the time discussing additional examples as a class. All other aspects of the course were held constant for the 209 students in the study;The first goal of the study was to investigate the effect of the ...


The Combined Effect Of Cognitive Monitoring, Heuristic Strategies, And Computer-Based Learning On Mathematical Problem Solving Skills, Dawn Marie Sleger Poole Jan 1993

The Combined Effect Of Cognitive Monitoring, Heuristic Strategies, And Computer-Based Learning On Mathematical Problem Solving Skills, Dawn Marie Sleger Poole

Retrospective Theses and Dissertations

No abstract provided.


Iowa Mathematics Teachers' Use And Perception Of The Curriculum And Evaluation Standards For School Mathematics , Elio Esqueda Jan 1993

Iowa Mathematics Teachers' Use And Perception Of The Curriculum And Evaluation Standards For School Mathematics , Elio Esqueda

Retrospective Theses and Dissertations

The purposes of this study were to: (1) identify the Levels of Use (LoU) categories regarding implementation of the Curriculum and Evaluation Standards for School Mathematics (Standards); (2) investigate the existence of a relationship between the LoU of these mathematics teachers and teacher demographics, participation in mathematics education organizations, involvement with the Standards, and philosophical consistency variables; (3) identify type and frequency of use of computer technologies related to implementing the Standards; and (4) determine if selected variables could predict the LoU categories. Data were gathered from a stratified random sample of 198 secondary mathematics teachers in Iowa by a ...


Computer Simulations, Reflective Journals, Peer Group Interactions, And Conceptual Change About Electricity With Preservice Teachers , Constance Phyllis Hargrave Jan 1993

Computer Simulations, Reflective Journals, Peer Group Interactions, And Conceptual Change About Electricity With Preservice Teachers , Constance Phyllis Hargrave

Retrospective Theses and Dissertations

Research on how students learn science concepts suggests that often students develop naive theories (or misconceptions) to explain natural phenomena. Students at various grade levels possess misconceptions about electricity; moreover, students use these misconceptions to explain the flow of electrical current within a circuit;Because students tend to use their misconceptions about science concepts to understand new concepts, the development of instructional strategies that assist students in changing their science misconceptions could greatly improve student learning. The purpose of this study was to operationalize and test the conceptual change model of learning to alter students' misconceptions about electricity. This study ...