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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.
201

The Effect of a Laboratory-based, In-context, Constructivist Teaching Approach on Preservice Teachers' Science Knowledge and Teaching Efficacy.

Thompson, Ruthanne 05 1900 (has links)
This study began with a concern about elementary teachers, as a whole, avoiding the teaching of science in the elementary classroom. The three main factors noted as reasons for this avoidance were: (1) minimum science requirements to reach certification, leading to a lack of preparedness; (2) lack of exposure to science in elementary school; and (3) general dislike for and understanding of science leading to a low self-efficacy in science teaching. The goal of the Environmental Science Lab for Elementary Educators (ESLEE) was to conduct an intervention. The intervention was lab-based and utilized in-context, constructivist approaches to positively influence participants' abilities to retain science content knowledge and to affect their belief in themselves as teachers. This intervention was created to respond to all three of the main avoidance factors noted above. The research utilized a quasi-experimental, pretest-posttest control group design. Two pretests and two posttests (science teaching efficacy and content knowledge) were given to all 1,100 environmental science lab students at the participating institution over two long semesters. Three experimental/control groups were formed from this population. The Experimental Group was comprised of 46 students who participated in the ESLEE Intervention. Control Group 1 was comprised of 232 self-described preservice educators (SDPEEs) in "regular" labs. Control Group 2 was comprised of 62 nonSDPEEs taught by ESLEE instructors in "regular" lab settings. A DM MANOVA was used to analyze the data. The results demonstrated that the ESLEE Intervention was statistically significant at the p> .05 level for science teaching efficacy between the Experimental Group and Control Group 1, and was statistically significant for both content knowledge and efficacy between the Experimental Group and Control Group 2. More notably, the effect size (delta) results ranged from .19 to .71 and .06 to .55 (partial eta squared) and demonstrated the practical significance of implementing the ESLEE Intervention.
202

The Effect of Work-Study Methods Instruction on Student Achievement in Fifth Grade Social Studies

Walker, Gaston Lea 12 1900 (has links)
The problem with which this investigation is concerned is the effect of work-study method instruction upon the achievement of students in fifth grade social studies. The purpose of this investigation is to determine the effects of the SQ3R (Survey, Question, Read, Recite, Review) Study Method instruction upon the achievement of students in fifth grade social studies. The subjects ranged in age from ten years two months to thirteen years three months. Th I.Q. for the subjects ranged from 70 to 135. Of the 102 subjects involved in the study, 42 were male and 60 were female. The I.Q. score from the California Test of Mental Maturity, S Form was used to structure the subjects into three intelligence levels. Fifty-four subjects served as the experimental group, and forty-eight served as the control group. The instrument used to obtain pretest and posttest scores on the variable relating to achievement was the SRA Assessment Survey, Blue Level. Form E was used for the pretest, and Form F was used for the posttest. The subjects were assigned to four classes which were near equal. Two classes were selected by the principal to serve as the experimental group. The other two classes served as the control group. The investigator spent equal time with the control and the experimental group. The four classroom teachers rotated between experimental and control groups on an equal basis. Students in the experimental group met nineteen times during the study for a thirty-minute period. During these sessions, the experimental subjects used the SQ3R Study Method to do social studies assignments. The control group met for the same number of sessions and for an equal amount of time. They worked with the same content but without using the SQ3R Study Method. The analysis of covariance was employed with pretest scores as the covariant.
203

Changes in Social Distance After the Inclusion of Spanish Instruction in a Fifth-grade Social Studies Unit

Kostohryz, Vernon R. 08 1900 (has links)
The problem of this study is concerned with the change in social distance to foreigners after the inclusion of Spanish language instruction in a four-week, fifth-grade social studies unit on Latin America.
204

Assessing Effects of an Environmental Education Field Science Program Fostering Responsibility at an Urban Middle School

Sills, Blake 05 1900 (has links)
The study investigated the ability of an extracurricular program to influence environmental responsibility of sixth and seventh graders. The Children's Environmental Attitude and Knowledge Survey (CHEAKS) was evaluated for appropriateness in assessing the worth of this particular environmental education strategy emphasizing water quality fieldwork and technology. CHEAKS is designed with psychometric reliability and validity that may be used in comparing disparate programs. Wilcoxon two sample tests were used to analyze data gathered from two student groups; one participated in an "Enviro-Mentals Club"; the other received no treatment. Analysis showed no significant change in environmental attitudes between groups, but did show significance (p <= 0.05) in environmental knowledge growth. Therefore, the investigated program had marginal success in influencing environmental responsibility.
205

The Effect of Guided Practice on Student Achievement in Social Studies and Science in Grades Five and Six

Scallan, Bob 08 1900 (has links)
The purpose of this study was to assess whether guided practice is more effective than no guided practice (1) in fifth and sixth grade classrooms, (2) in fifth and sixth grade social studies classrooms and fifth and sixth grade science classrooms, and (3) in science classrooms and social studies classrooms. In this experimental study, all fifth and sixth grade students in a small school district in north Texas were randomly assigned to two experimental groups and two control groups in each grade. Over the course of one month two teachers who had previously been trained in the use of guided practice procedures taught the experimental groups in each grade, using, extensive guided practice. Two other teachers taught the control groups in each grade without the use of guided practice. Students in both groups were administered a pretest before beginning each of two chapters in each textbook, while a posttest was administered after the study of each chapter. The analysis and interpretation of data yielded the conclusions that the use of guided practice in classes can be expected to result in higher student achievement than in classes using little or no guided practice in the following areas: science classes, social studies classes, sixth grade classes in general, fifth grade classes in general, fifth grade science classes, and fifth grade social studies classes. The use of guided practice did not result in significant gains in student achievement in sixth grade science classes and sixth grade social studies classes when compared with classes which used little or no guided practice.
206

Inquiry-based science for high school students: a forensic unit

Apple, Kendra Kea 08 1900 (has links)
This project constitutes an instructional unit for honors biology that involves the use of science in the field of criminal investigation and forensics. Before beginning the unit, the learners should have mastered basic laboratory skills, including use of the microscope. They should also have an understanding of the basic structure and function of DNA and its role in heredity and protein synthesis. The standard time frame is 24 days with 70-minute periods, but can be easily adjusted to meet classroom needs. Several instructional strategies enhance student learning and make science fun. The unit is inquiry-driven and activity-based. Students are surprised by the crime, gather and analyze evidence, and work towards proposing an explanation. This real world problem involves the use of cooperative learning and a variety of assessment techniques.
207

The development of skills in physical science through environmental education : a case study

13 August 2012 (has links)
D.Ed. / According to Prof. Linda Chisholm (2000) in an address delivered at the Annual Conference of APEK,"...the report of the Review Committee on Curriculum 2005 has evoked a great deal of debate and discussion in two main areas related to the values that it promotes: the first is the relationship between outcomes-based education and Curriculum 2005 and the second is the role of technology and economic and management sciences in the curriculum." The National Curriculum Statement (NCS) promotes the idea of Outcomes Based Education (OBE) and the principles of Curriculum 2005 (C2005), but the emphasis is now to develop a schools' policy built on a set of recommendations for it to be revised and streamlined by substituting the terminology with "user-friendly" phrases and language (Chisholm, 1999:1). By preparing the science teachers in South Africa with the necessary skills to effectively transform the present curriculum into a workable and flexible system, the empowerment they gain from such an exercise is crucial to their focus on science teaching and learning. According to Prof. Chisholm, "a human rights based, antidiscriminatory approach demands a higher level of reading, writing and arithmetic that has existed to date, whether before C2005 or with C2005. For us there can be no return to basics, and the challenge now is to ensure not only that more have access but also that all have access to higher levels than before." This is a sustainable demand of the twenty-first century; hence the term curriculum was adopted.With an environmental education approach, the cross-curricular and dynamic nature of the environment (Van Rooyen, 1998: 104) that is exposed to South Africans today can be positively channelled through the acquisition of basic scientific skills needed to confront the 21s t Century. Outcomes Based Education is one approach that has been tabled, and has its merits and disadvantages. If an environmental education programme becomes the learning programme upon which the curriculum is based, then the overall quality of education in South African schools and the quality of life of the nation can be uplifted through the application of such a model or programme, particularly in the fields of general and physical science: The long-term aims of this study include the following: To encourage a broad, participatory process of Curriculum development for environmental education in South Africa, in accordance with the EEPI (Environmental Education Policy Initiative); To provide educators teaching Physical Science with a programme which can be applied to determine methods which enable the scientific problem solving skills of South Africans and their overall quality of their lives to be uplifted and improved; To carry out the above process through effective education for the environment; To contribute to and refine the new C2005 through the application of environmental strategies and methods of assessment , based on critical and specific outcomes.(OBE)
208

Developing NGSS-Aligned Assessments to Measure Crosscutting Concepts in Student Reasoning of Earth Structures and Systems

Weiser, Gary January 2019 (has links)
The past two decades of research on how students develop their science understandings as they make sense of phenomena that occur in the natural world has culminated in a movement to redefine science educational standards. The so-called Next Generation Science Standards (or NGSS) codify this new definition into a set of distinct performance expectations, which outline how students might reveal to what extent they have sufficient understanding of disciplinary core ideas (DCIs), science practices (SEPs), and crosscutting concepts (CCCs). The latter of these three dimensions is unique both in being the most recent to the field and in being the least supported by prior science education research. More crucially, as a policy document, the NGSS alone does not provide the supports teachers need to bring reforms to their classrooms, particularly not summative assessments. This dissertation addresses both of these gaps using a combination of quantitative and qualitative techniques. First, I analyze differential categorization of problems that require respondents to engage with their CCC understandings via confirmatory factor analysis inference. Second, I use a set of Rasch models to measure preliminary learning progressions for CCCs evident in student activity within a computer-assisted assessment experience. Third, I analyze student artifacts, think-aloud interviews, and post-task reflective interviews via activity theory to adapt the progression into a task model in which students explain and predict aspects of Earth systems. The culmination of these three endeavors not only sets forth a methodology for researching CCCs in a way that is more integrative to the other dimensions of the NGSS, but also provides a framework for developing assessments that are aligned to the goals of these new standards.
209

Investigating South African Grade 12 physical science learners’ meanings of everyday words when used in the science context

Semeon, Nasimu 04 February 2015 (has links)
A research report submitted to the Faculty of Science, University of the Witwatersrand in partial fulfilment of the requirements for the degree of Master of Science. Johannesburg, August 2014. / The general poor performance in physical science in South Africa is a cause for concern. The reasons for this situation includes lack of basic content knowledge by science teachers, unprofessional attitudes, ineffective teaching approaches, lack of resources and failure to understand the language of science by the learners. This study investigated South African grade 12 learners’ meanings of everyday words when used in science context. The study focused on grade 12 physical science learners from four different government secondary schools in Johannesburg. These learners had different home languages and socio-economic background. Data was obtained through a questionnaire given to learners followed by group interviews with the learners. A face-to-face interview with each physical science teacher from each school was also conducted. This study reveals that learners face difficulties with meanings of everyday words when used in science context as was reflected by their response in the questionnaire. The physical science teachers from the four secondary schools were not aware that everyday words (nontechnical words) are misunderstood by the learners when they are teaching them. As such teachers were not explaining the meanings of these words to learners in their context of use. Also the teachers did not know the difference between technical words and non-technical words. The study seeks to make the science teachers aware of this problem so that they can take time to explain the meanings of these words when teaching and this might improve understanding of science concepts. It is hoped that if there is shared meaning of words used in the instructional language between the teacher and learners it would improve the general performance in physical science.
210

The Use of Learning Styles in Teaching Social Studies in 7th and 8th Grade: A Case Study

Woodring, Betty Gregory 08 1900 (has links)
This qualitative case study examined the extent to which learning styles were used by teachers in four seventh and eighth grade social studies classrooms in a large suburban north Texas junior high school. The conclusions were as follows: 1) The environment on the junior high level did not afford the flexibility found in the elementary classroom. The changing of students, teachers, and the multi-purpose use of rooms did not afford flexibility of light, temperature, sound, and design preference. 2) The physical and the psychological categories had elements within each category that overlapped. A right brain activity closely aligned to a tactile/kinesthetic activity. A parallel between physical-mobility and psychological-global was noted, as well as a pattern between the global and the tactile/kinesthetic projects. 3) The split lunch period created problems for the global, kinesthetic, impulsive students. The academic environment was interrupted for a thirty minute period; students had to re-acclimate to a more analytic environment after lunch. 4) Each teacher alternated between primary style and secondary and tertiary styles. This mediation ability enabled each teacher to use all styles in lessons the researcher observed. 5) Abstract random and concrete random teachers did more group and team teaching than concrete sequential and abstract sequential teachers. Further, dominant sequential ordering in a teacher limited random activities. Whereas, dominant random ordering in a teacher limited sequential ordering activities. Both groups of teachers experienced teacher burnout when forced out of their primary style. 6) It was easier for those teachers whose primary and secondary ordering were opposite (CS/CR or AS/AR), as opposed to those whose primary and secondary ordering were the same (CS/AS or CR/AR), to align to a different environment. 7) These results suggest that teachers should not be required to stay in any one style. The flexibility of being able to alternate between styles will conserve energy and prevent teacher burnout.

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