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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.
51

The Effect Of Explicit Embedded Reflective Instruction On Nature Of Science Understandings, Scientific Literacy Levels And Achievement On Cell Unit

Koksal, Mustafa Serdar 01 January 2010 (has links) (PDF)
The purpose of this study is to investigate the effectiveness of explicit-embedded-reflective (EER) instruction on nature of science (NOS) understandings, scientific literacy levels and cell content knowledge of the ninth grade advanced science students. This study has been conducted with 71 students by using non-equivalent quasi-experimental design. In the treatment groups, the EER teaching has been conducted while NOS instruction in the comparison group for the same time interval has been done by lecture, demonstration and questioning strategies. Views on Nature of Science Questionnaire-Form C, Nature of Science Literacy Test, Cell Content Knowledge Test, and interviews have been used for data collection. Categorization of the participants&rsquo / profiles on the NOS aspects, paired samples t-tests and one-way Multivariate Analysis of Variance (MANOVA) have been used for data analysis. The results have shown the participants have had misunderstandings about &ldquo / one method in science&rdquo / , &ldquo / no hierarchy between law and theory&rdquo / and &ldquo / difference between observation and inference&rdquo / while they have had expert views on &ldquo / role of creativity and imagination&rdquo / at the beginning of the study. For elimination of na&iuml / ve views, the EER approach has been found as effective. The approach has also been determined as effective on the increase in scientific literacy levels and learning on cell unit. In addition, the EER approach is more effective on learning cell content knowledge and gaining expert understandings of NOS than common approach in comparison group while there has been no difference between the scores of two groups in terms of scientific literacy levels.
52

Evaluation of the "Information Retrieval Skills - Agri220" module in the Faculty of Science and Agriculture at the University of Natal, Pietermaritzburg.

Krige, Emily-Ann Jensen. January 2001 (has links)
An evaluation was conducted on a credit-bearing module that has recently become compulsory for second year students in four of the six schools in the Faculty of Science and Agriculture at the University of Natal, Pietermaritzburg. The module was based on a course that has been run for Agriculture students since the 1980s. The module "Information Retrieval Skills" (Agri220) is run over a two week period at the beginning of the first semester and covers the library computer catalogue, OPAC and other retrieval tools such as print-based abstracts and indexes, SABINET Online and the CD-ROM databases in the library. The study sought to determine students' perceptions of the Agri220 module, to determine whether the outcomes as described in the Agri220 module template were evident in students, and to determine the use students made of the library. The method that was used in the evaluation was summative, and thus conducted after students had completed the module. Furthermore to find out their views about the contribution of the module to their studies, the study focused on students who had done the module over a year previously. The respondents were students in the School of Agricultural Sciences and Agribusiness as these were the students for whom the module was compulsory in 1999. A survey was done of five third year classes , which consisted of both third and fourth year students, and questionnaires were distributed and completed in the classes. Students were very positive in their feedback about the module and reported becoming more efficient in their use of the library. They were largely familiar with the interlibrary loan service and OPAC but were aware to a lesser extent of the print-based abstracts and indexes in the library. The study found that students predominantly used books and to a lesser extent journals. Electronic retrieval formats were popular. The students who supplemented their notes with extra readings relied on reserved material and reading lists. Students made suggestions about changes to the module: such as extending the length of the module, bringing it forward to first year, and teaching the module in smaller groups. / Thesis (M.I.S.)-University of Natal, Pietermaritzburg, 2001.
53

An evaluation of postgraduate social science students' knowledge of conducting research responsibility in a South African university.

Maitin-Casalis, Wendy. January 2010 (has links)
Conducting research responsibly is an essential part of ethical research (Steneck & Bulger, 2007). When research is not conducted responsibly, the result is often research misconduct, which may cause harm to research participants (Aita & Richer, 2005). Although numerous methods and policies have been developed, both to prevent and to deal with research misconduct, such effects are ongoing (Howard Stone, 2001). A study conducted in the United States of America (USA) by Heitman, Olsen and Anestidou (2007) suggested that postgraduate biomedical students did not have sufficient knowledge of conducting research responsibly. This study aimed to adapt Heitman et al.’s (2007) study to social science postgraduate students at the University of KwaZulu-Natal in South Africa. Although findings indicated that the participants had adequate knowledge of conducting research responsibly, the variables hypothesised to have an impact on the results – such as age, research experience, and research training – did not produce any significant findings. / Thesis (M.A.)-University of KwaZulu-Natal, Pietermaritzburg, 2010.
54

Encouraging girls in science : facts, theories and practical suggestions

Smith, Jennifer, University of Lethbridge. Faculty of Education January 1987 (has links)
It is the objective of this paper to present the facts concerning the current status of Canadian women in science, to review the theories which have been put forth to explain gender disparities in science participation, to outline the findings of research in the area of gender and science, and to suggest ways in which science teachers could respond to these research findings. / 79 p. ; 28 cm.
55

Black engineering and science student dropouts at the University of the District of Columbia from 1987 to 1991

Taylor, Alfred O. 14 August 2006 (has links)
Black engineering and science students in colleges and universities have not been researched sufficiently to determine the reasons for their success or failure. This was an exploratory study focusing on those factors that influenced non-persistence of African-American science and engineering students at the University of the District of Columbia from 1987 to 1991. The subjects for this study were eight (8) African-American students who matriculated at the University of the District of Columbia from 1987 to 1991. The students were enrolled in the College of Physical Science, Engineering, and Technology during that period of time. A survey of 59 questions grouped into five categories was administered as an interview over the telephone and by mail. The survey revealed the following: (a) Students own experiences lead to mind changes about career aspirations, and these aspirations are not always in concert with parents; (b) academic success is no guarantee of persistence; (c) negative experiences do not dampen perceived need for further education; and (d) non-persistence is caused by lack of preparation, desire to transfer, disillusionment, financial difficulties, and changes in the environment. In that the study involved only eight students, the data was not sufficient to warrant definitive recommendations for curriculum changes, program changes, or approaches being used by pre-college programs to interest African-American students in selecting science or engineering related disciplines. However, two areas have promise for future research: learned helplessness syndrome-- how it and students' natural fear of failure may be related to non-persistence; and contextual learning--how it addresses a learning style not utilized regularly in teaching quantitative subjects. The data did point out the need for continued assessment of first-year students, as well as continuous monitoring of their concerns on a semester-by-semester basis. Individually oriented treatment is encouraged for these students. / Ed. D.
56

The effects of an intensive reading programme on the academic performance of post-matric English Second Language students in Science

Phillips, Susan 31 December 2004 (has links)
Reading is considered to be a vital skill for academic success, yet it is seldom taught to or practised with students. Students begin to `read to learn' during primary and secondary schooling. However, at tertiary level the academic demands are much greater than before and involve more extensive reading of conceptually more complex texts. This study investigates the implementation of an intensive reading programme for post-matric English Second Language Science students, based on the assumption that reading improves reading. In addition, this study investigates the effect that reading ability has on academic performance in Science, which relies inter alia, on the ability to read, comprehend and interpret word problems. An intervention group and a control group were used to ascertain the effects of an intensive reading programme and the findings suggest that any reading (intensive or extensive) improves reading and language skills. This in turn impacts on academic performance in Science, if students have an ability in Science to begin with. / Linguistics / MA - SP APPLIED LINGUISTICS
57

A study of student academic performance at the University of Natal.

Naidoo, Robert. January 1994 (has links)
In this dissertation a study will be made of university performance in the Science Faculty of the University of Natal, Durban. In particular, we will develop models that can be used to predict the success rate of a student based on his or her matriculation results. These models will prove useful for selecting students to universities. They may also be used to assist sponsors, bursars and donors in allocating funds to deserving students. In addition, these models may be used to identify students who might experience difficulties in their studies at university. / Thesis (M.Sc.)-University of Natal, Durban, 1994.
58

Mentored Engagement of Secondary Science Students, Plant Scientists, and Teachers in an Inquiry-Based Online Learning Environment

Peterson, Cheryl 2012 August 1900 (has links)
PlantingScience (PS) is a unique web-based learning system designed to develop secondary students' scientific practices and proficiencies as they engage in hands-on classroom investigations while being mentored online by a scientist. Some students' teachers had the opportunity to attend PS professional development (PD). In this dissertation, I developed a process of assessing student learning outcomes associated with their use of this system and evaluated inquiry engagement within this system. First, I developed a valid and reliable instrument (Online Elements of Inquiry Checklist; OEIC) to measure participants' (students, scientists, and teachers) engagement in scientific practices and proficiencies embedded within an inquiry cycle I collaborated with an expert-group to establish the OEIC's construct and content validities. An inter-rater reliability coefficient of 0.92 was established by scientists and a split half analysis was used to determine the instruments' internal consistency (Spearman-Brown coefficient of 0.96). Next, I used the OEIC to evaluate inquiry cycle engagement by the participants who used the PS online platform designed by the Botanical Society of America which facilitated communication between participants. Students provided more evidence of engagement in the earlier phases of an inquiry cycle. Scientists showed a similar trend but emphasized experimental design and procedures. Teachers rarely engaged online. Exemplary students' outcomes followed similar inquiry cycle trends, but with more evidence of engagement with one notable difference. Exemplary students provided evidence for extensive engagement in immersion activities, implicating immersion as a crucial component of successful inquiry cycle engagement. I also compared engagement outcomes of students whose teachers attended the PD experience to the students of teachers who did not attend PD. Differences found between the two groups occurred throughout the inquiry cycle, typically associated with experiences provided during the PD. As a result of this research I have several recommendations about revisions to the PS online platform and use of approaches to assure students development of scientific practices and proficiencies. The recommendations include additional scaffolding of the platform, explicit inquiry cycle instruction, and continued opportunities for teachers to engage in PD experiences provided by PS.
59

The effects of an intensive reading programme on the academic performance of post-matric English Second Language students in Science

Phillips, Susan 31 December 2004 (has links)
Reading is considered to be a vital skill for academic success, yet it is seldom taught to or practised with students. Students begin to `read to learn' during primary and secondary schooling. However, at tertiary level the academic demands are much greater than before and involve more extensive reading of conceptually more complex texts. This study investigates the implementation of an intensive reading programme for post-matric English Second Language Science students, based on the assumption that reading improves reading. In addition, this study investigates the effect that reading ability has on academic performance in Science, which relies inter alia, on the ability to read, comprehend and interpret word problems. An intervention group and a control group were used to ascertain the effects of an intensive reading programme and the findings suggest that any reading (intensive or extensive) improves reading and language skills. This in turn impacts on academic performance in Science, if students have an ability in Science to begin with. / Linguistics and Modern Languages / MA - SP APPLIED LINGUISTICS
60

The effect of single sex schooling on girls' achievement in Physical Science

Carter, Tracey-Ann 30 June 2005 (has links)
This study investigated whether girls achieve better results in Physical Science in single sex environments or in co-educational classes. Thirteen independent South African schools where children were of similar socio-economic background were considered. Grade 12 Matriculation Physical Science examination results for 1999 to 2003 were analysed using Bonferroni (Dunn) t-Tests and Scheffe's Tests. Questionnaires were completed by a small number of students in order to compare their attitudes towards Physical Science and examined qualitatively. There were significant differences found by the administration of the Bonferroni (Dunn) t-Tests and Scheffe's Tests in 2000, 2001 and 2002 to indicate that girls in single sex schools achieved better results in Science than the co-educational schools. However, in 1999 and 2003 there was no significant difference in the results achieved, and so there may be other factors that are more important predictors of achievement than whether the schools are mixed or single sex. / Educational Studies / M.Ed. (Natural Science Teaching)

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