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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
31

An investigation into the relationships between concepts of force attained and maturity as indicated by grade levels

Helgeson, Stanley L. January 1967 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1967. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliography.
32

Children's books and the nature of science a multisite naturalistic case study of three elementary teachers in the rural southeast /

Bricker, Patricia Lynn, January 2005 (has links) (PDF)
Thesis (Ed. D.) -- University of Tennessee, Knoxville, 2005. / Title from title page screen (viewed on Feb. 13, 2006). Thesis advisor: Colleen P. Gilrane. Vita. Includes bibliographical references.
33

Standards-based teaching and educational digital libraries as innovations undergraduate science faculty in the adoption process /

Ridgway, Judith Sulkes, January 2005 (has links)
Thesis (Ph. D.)--Ohio State University, 2005. / Title from first page of PDF file. Includes bibliographical references (p. 281-288).
34

A Retrospective Survey of College Biology Majors on the Effect of Educational Laboratory Practices and Outdoor Field Experiences on Degree Retention, Interest, and Motivation in Biology

Leinweber, Chay 08 June 2018 (has links)
<p> The goal of this study is to determine where interest in biology is created, reinforced, or diminished in education. The online, Qualtrics created survey was launched on October first, 2017 until October twenty-fifth, 2017 to students enrolled as freshmen in the biology program, undergraduate seniors in the biology program, and graduate students of the biology program. There were 197 participants in all, and they were asked to respond retrospectively to a variety of questions dealing with their background, interest, and motivation in biology. Results from the survey questions were grouped and analyzed based on six research questions of the study and the hypotheses from these were supported, partially supported, or not supported. We determined that: (1) subjects' perceptions of hands-on lab classes, field work, outdoor experiences and research all helped push college students to pursue a college biology degree; (2) subjects did not attribute their decision to study the field of biology to their family members, but did attribute their decision to other significant people in their lives with strong biological experience, degrees, or expertise; (3) subjects did not believe that other content-related, nontraditional experiences such as STEM camps, community service opportunities, and research opportunities had a positive influence on their desire to go into biology or assisted them in learning in the college biology curriculum; (4) subjects believe that college courses with hands-on activities, classes with labs, field work, outdoor labs and undergraduate research will help them to succeed or persist in their college biology degree; (5) subjects believe that biology labs positively influence their self-confidence in biology and help them better perform in science; (6) subjects do not believe the best protocols in laboratories are inquiry-based, as compared to step-by-step methods. </p><p>
35

Impact and Implications of the Flexible Learning Environment in the At-risk Secondary Classroom

Erz, Suzanne L. 15 September 2018 (has links)
<p> Achieving and maintaining student engagement within a classroom are issues educators have dealt with since the inception of formal educational systems. The effects of seating arrangements on the classroom ecology have often been an area of concern for teachers. Recently a new trend in education called flexible seating has emerged. Flexible seating consists of a variety of alternative seating options. Proponents of flexible seating allege it creates an environment that decreases off-task behaviors which increases student outcomes through attentiveness. The purpose of this study is to understand how the effects of a flexible seating arrangement impact the ecology of the at-risk secondary classrooms, and to explore advantages and disadvantages of flexible seating in these classrooms. The study&rsquo;s findings are taken from teacher interviews and observations within two at-risk secondary classrooms. The results demonstrate flexible seating increases the democracy in the classroom creating a feeling of well- being and allows self-regulation. However, based on this study educators are advised to learn their students&rsquo; needs and remember the nature of the task should influence the seating arrangement as well. </p><p> <i><b>Key Words:</b></i> flexible seating, traditional seating, at-risk, school ecology, on-task behaviors, off-task behaviors, engagement </p><p>
36

Developing Ecological Identities in High School Students through a Place-Based Science Elective

Porter, Kelly Allison 20 October 2018 (has links)
<p> With the increasing human population, it is critical to develop informed citizens with ecological perspectives and motivation to make positive contributions to the biosphere. This study investigates the impact of a place-based science elective on the development of students&rsquo; ecological identities, motivation for environmental action, and ecojustice self-efficacy. Targeted curriculum was implemented, including a campus habitat design project. Pre and post tests for three instruments were used to assess 25 high school freshmen, half of whom are members of a STEM program. There was an increase in nature relatedness, motivation and self-efficacy for STEM students but not for non-STEM students. The research study demonstrated the effectivity of using place-based curriculum within classes to encourage student connection, empowerment and involvement. Support for teachers to develop targeted mentoring of students&rsquo; abilities and interests are needed and can help develop informed, involved global citizens. </p><p>
37

Training Citizen Scientists for Data Reliability| A Multiple Case Study to Identify Themes in Current Training Initiatives

Gaddis, Margaret L. 22 December 2018 (has links)
<p> This dissertation characterized trainings designed to prepare citizen scientists to collect ecological data in natural outdoor settings. Citizen scientists are volunteers who participate in scientific activities under the guidance of professional scientists and organizations. The work of citizen scientists greatly expands the data collection possibilities in natural resource management and increases science literacy among participants and their social communities. The general problem is that some scientists and land managers view the data collected by citizen scientists as unreliable. The specific problem is the absence of educational training measurement in citizen science program design and analysis with which to ascertain the learning gains of trained citizen scientists. </p><p> Through a sequenced methodology of data analysis, survey, and semi-structured interviews, deductive descriptors and codes guided a directed content analysis of data collected. The analysis indicated strong alignment between citizen science, andragogy, and social learning theory. The sample revealed a bimodal distribution related to the type of data collected and the subsequent training design. Little training existed when data collection involved photography only. Citizen scientists brought prior skills to the task but did not need to gain new procedural learning to complete their data collection task. When citizen scientists collected more complex measurements, classroom and field mentoring facilitated learning. </p><p> Citizen science leaders described their perception of the reliability of their citizen scientists&rsquo; data collection efforts. Computer technologies validated photo and water quality data. Therefore, quantitative data analysis supported the perception of data reliability. Terrestrial data had a range of reliability qualifications including video and paper quizzing, field observation of methods implemented, periodic data checks, and follow-up mentoring when data quality was poor. Managers of terrestrial citizen science programs were confident in the reliability of the data for the land management, policy, and research applications required.</p><p>
38

Eighth-Grade NGSS-Aligned Lesson Sequence for Catalina Island

Kay, Jamie M. 23 September 2018 (has links)
<p> This thesis project consists of the development of an eighth-grade lesson sequence written for students on Catalina Island in Southern California. It is written as part of a project developed by the Catalina Island Conservancy to promote the ecological awareness of students living on the island. It encompasses the three dimensions of the Next Generation Science Standards, highlights an outdoor component, and uses a 5E lesson framework. The lesson was reviewed by the Catalina Island Conservancy and by teachers experienced with the Next Generation Science Standards. Revisions were made based on their feedback. The lesson sequence focuses on a local endemic subspecies of bird in order to explore natural selection. Students learn about the bird, investigate its local habitat, compete in a natural selection simulation, and then make predictions about the fate of the bird due to a climatic change, using evidence collected throughout the lesson.</p><p>
39

Teacher Responses to Learning Cycle Science Lessons for Early Childhood Education

Kraemer, Emily N. 02 March 2018 (has links)
<p> Three learning cycle science lessons were developed for preschoolers in an early childhood children&rsquo;s center in Costa Mesa, California. The lessons were field tested by both novice and experienced teachers with children ranging from three to five years old. Teachers were then interviewed informally to collect feedback on the structure and flow the lessons. The feedback was encouraging remarks towards the use of learning cycle science lessons for early childhood educators. Adjustments were made to the lessons based on teacher feedback. The lessons and their implications for preschool education are discussed. </p><p>
40

Science Teacher Decision-Making in a Climate of Heightened Accountability| A Rhizomatic Case Study Analysis of Two Science Departments in New York City

Purohit, Kiran Dilip 16 August 2017 (has links)
<p> Secondary science teachers make many daily decisions in the enactment of curriculum. Although curriculum materials are widely available to address science content, practices, and skills, the consideration that goes into deciding how and whether to use such materials is complicated by teachers&rsquo; beliefs about science, their understandings of school-level accountability and testing measures, and their perspectives on the adolescent students they teach. This study addresses the need to understand how teachers consider multiple forces in their enactment of science curriculum.</p><p> The purpose of this study was to explore the ways that discourses around accountability, science, and science education emerge in the narratives around teachers' decision-making in secondary science classrooms. Using a case study approach, I worked at two school sites with two pairs of science teachers. We established criteria for critical incidents together, then teachers identified critical decision-making moments in their classrooms. We analyzed those incidents together using a consultancy protocol, allowing teachers to focus their thinking on reframing the incidents and imagining other possible outcomes.</p><p> Using post-structuralist rhizomatics, I assembled analyses of teachers&rsquo; discussions of the critical incidents in the form of dramatization&mdash;scenes and monologues. I then developed two major interpretive strands. First, I connected teachers&rsquo; sense of having &ldquo;no time&rdquo; to blocs of affect tied to larger discourses of national security, teacher accountability, and the joy of scientific discovery. Second, I demonstrated how teachers&rsquo; concern in following logical pathways and sequences in science relates to the imposition of accountability measures that echo the outcomes-driven logic of the learning sciences. Across both interpretations, I found accountability to be complex, multidirectional, and unpredictable in how it works on and through teachers as they make decisions.</p><p> Research in this area has important practical implications in the fields of professional development, curriculum development, and school change. As more states (including New York) adopt standards derived from the Next Generation Science Standards (NGSS), the importance of privileging teachers&rsquo; investment and critical decision-making in the process of new curriculum development is vital. I suggest that tools like video-based coaching and consultancy protocol discussions support this kind of thoughtful curricular change.</p><p>

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