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1.
Anne Dairianathan 《International Journal of Science Education》2013,35(8):1079-1108
The purpose of this study was to investigate primary students’ learning through participation in an out‐of‐school enrichment programme, held in a science centre, which focused on DNA and genes and whether participation in the programme led to an increased understanding of inheritance as well as promoted interest in the topic. The sample consisted of two groups (245 students in the experimental group and 150 students in the control group) of upper primary students (Grade 5) from six schools in Singapore. Two instruments were developed—a 15‐item multiple‐choice test to measure learning gains and a 17‐item survey form to measure student feedback. Pre‐, post‐, and delayed post‐tests were administered. Results showed statistically significant gains in learning for the experimental group that appeared to be stable as well as high levels of interest stimulated by the programme. 相似文献
2.
Narges Adibsereshki Masoome Pourmohamadreza Tajrishi Mahmood Mirzamani 《Educational studies》2010,36(4):447-459
This study investigates the effectiveness of a preparatory programme on the acceptance of students with physical disabilities by their peers in inclusive schools in Tehran. The classrooms which had students with physical disabilities were included in this study. Two hundred and twenty‐one third‐ to fifth‐grade students (116 girls and 105 boys) were selected randomly and were placed in experimental and control groups. The Acceptance Scale (Form B) established by Voeltz was used to measure peer acceptance. Data were collected from two groups before and after applying the preparatory programme. The data were analysed by t‐test for independent groups and two‐way ANOVA. The results showed increase of acceptance in experimental group. Also in comparing the level of acceptance in girls and boys, the results indicated that the acceptance in girls were more than boys. 相似文献
3.
Bryan A. Brown Kihyun Ryoo Jamie Rodriguez 《International Journal of Science Education》2013,35(11):1465-1493
This study examines the impact of Disaggregate Instruction on students’ science learning. Disaggregate Instruction is the idea that science teaching and learning can be separated into conceptual and discursive components. Using randomly assigned experimental and control groups, 49 fifth‐grade students received web‐based science lessons on photosynthesis using our experimental approach. We supplemented quantitative statistical comparisons of students’ performance on pre‐ and post‐test questions (multiple choice and short answer) with a qualitative analysis of students’ post‐test interviews. The results revealed that students in the experimental group outscored their control group counterparts across all measures. In addition, students taught using the experimental method demonstrated an improved ability to write using scientific language as well as an improved ability to provide oral explanations using scientific language. This study has important implications for how science educators can prepare teachers to teach diverse student populations. 相似文献
4.
Learning Microbiology with Computer Simulations: students’ academic achievement by method and gender
Tenth grade students studied the topic of ‘The growth curve of microorganisms’, which included a computer‐assisted learning (CAL) simulation episode. The CAL episode enabled students to simulate experiments which investigated the simultaneous impact of three independent variables upon the growth curve of microorganisms (temperature, nutrient concentration and the initial number of individuals from which to start a population growth). Two classes (n = 82 students) formed the experimental group and were instructed in a combination of classroom‐laboratory work with CAL. The control group included three classes (n = 99 students) who were taught the topic in the classroom‐laboratory work setting only. Five teachers taught the five classes, three periods weekly and the study lasted 4 weeks. The students’ previous knowledge in the topic to be learned and their academic achievement were assessed with pre‐ and post‐tests, respectively. The data for each lest were treated with a two‐way analysis of variance. The results showed that the two study groups did not differ in their previous knowledge and no significant differences were found by gender within and between the groups. The post‐test results on academic achievement indicated that students in the experimental group achieved significantly higher means scores than the control group. No significant gender differences on academic achievement were found within each group. The results affirm that: (a) computer simulations, in which three variables are manipulated simultaneously in one experiment, can be integrated as short episodes in the existing biology curricula; (b) high school students can perform computer simulations which require the skills of simultaneous manipulations of three variables in one experiment, problem solving and decision making; (c) girls and boys in the experimental group exhibited these skills at a similar academic level of achievement. 相似文献
5.
Huann‐shyang Lin Zuway‐R. Hong Chung‐Chih Chen Chien‐Ho Chou 《International Journal of Science Education》2013,35(9):1199-1217
The purpose of this study was to explore the effectiveness of integrating aesthetic understanding in reflective inquiry activities. Three typical classes of Taiwanese eighth graders (n = 106) and nine additional low‐achieving students in the same school participated in the study. The treatment for experimental students emphasized scaffolding aesthetic understanding and reflections on inquiry strategies. It was found that the experimental group students consistently outperformed their counterparts on the post‐test and the delayed post‐test in conceptual understanding and application of science knowledge. In addition, the low‐achieving students were motivated by the treatment and made significant progress on the two tests. The results of interview and classroom observation also revealed that the intervention made a difference in students’ affective perceptions. 相似文献
6.
Traditionally the measures used to evaluate the impact of an educational programme on student outcomes and the extent to which students change is a comparison of the student's pre‐test scores with his/her post‐test scores. However, this method of evaluating change may be problematic due to the confounding factor of response shift bias when student self‐reports of change are used. Response shift bias occurs when the student's internal frame of reference of the construct being measured, for example research ability or critical thinking, changes between the pre‐test and the post‐test due to the influence of the educational programme. To control for response shift bias the retrospective pre‐test method was used to evaluate the outcomes achieved from students completing a research module at master's level. The retrospective pre‐test method differs from the traditional pre‐test–post‐test design in that both post‐test and pre‐test perceptions of respondents are collected at the same time. The findings indicated that response shift bias was evident in that the programme had significantly greater impact on outcomes than identified using the traditional pre‐test–post‐test design leading to the conclusion that students may overestimate their ability at the commencement of an educational programme. The retrospective pre‐test design is not a replacement for the traditional pre‐test–post‐test measures but may be a useful adjunct in the evaluation of the impact of educational programmes on student outcomes. 相似文献
7.
The present study examined the comparative effects of a prediction/discussion‐based learning cycle, conceptual change text (CCT), and traditional instructions on students' understanding of genetics concepts. A quasi‐experimental research design of the pre‐test–post‐test non‐equivalent control group was adopted. The three intact classes, taught by the same science teacher, were randomly assigned as prediction/discussion‐based learning cycle class (N = 30), CCT class (N = 25), and traditional class (N = 26). Participants completed the genetics concept test as pre‐test, post‐test, and delayed post‐test to examine the effects of instructional strategies on their genetics understanding and retention. While the dependent variable of this study was students' understanding of genetics, the independent variables were time (Time 1, Time 2, and Time 3) and mode of instruction. The mixed between‐within subjects analysis of variance revealed that students in both prediction/discussion‐based learning cycle and CCT groups understood the genetics concepts and retained their knowledge significantly better than students in the traditional instruction group. 相似文献
8.
《Contemporary educational psychology》1998,23(2):132-148
The results of two evaluation studies with respect to a programme for enhancing inductive reasoning ability of third grade students are presented. The programme is a classroom version of the German programme ‘Denktraining für Kinder 1’ (Cognitive training for children; Klauer, 1989). In the first formative evaluation study, two experimental groups with 30 students in total and one control group with 9 students were involved. Observations during the lessons, and teachers' reports showed that teachers were able to implement the programme. Both experimental groups significantly outperformed the control group on a posttest immediately after the programme and on a follow-up test 3 1/2 months later. Further analyses of the data revealed tentative evidence of the superiority of a direct teaching method. In the second summative evaluation study, the same programme was applied to a larger sample (experimental groups: n = 99 in total; and control groups: n = 232 in total) of third grade students. On the basis of Study 1, the programme instructions were slightly changed. The experimental groups scored significantly higher on a posttest three months after completion of the programme. 相似文献
9.
The purpose of this study was to construct and study the impact of a research‐based sequence for teaching the concept of modelling to seventh‐grade science students. We identified students' notions of models and the aspects of school science to be addressed regarding the model concept, which were then taken into account when we planned the learning sequence. The idea of modelling in science was taught while the students were learning about the change of states of matter in seventh‐grade physics. A pre‐interview revealed that the students' notions of models were very limited, while a post‐interview showed that this improved in the course of the series of lessons. There was also a statistically significant difference in the students' understanding of modelling between our target group and a control group consisting of ninth‐grade students who had received only the normal teaching. However, a delayed post‐questionnaire completed a few months after the teaching sequence showed that the stability of learning results were dependent on whether models and modelling were used in the normal teaching conducted after the teaching sequence. Implications for teaching, teacher education and research are also addressed in this paper. 相似文献
10.
A multiple baseline research design across subjects (pairs) was used to examine the effectiveness of peer tutoring in reading using the Pause, Prompt and Praise tutoring procedure. Twelve 11 year‐old, Year 6 students of varying reading ability were trained in the systematic use of delayed attention, prompting and praise to tutor 12 Year 6 students of a similar age and similar reading ability. Individual trends in tutor behaviours were examined using a statistical programme specifically designed for analysing data from interrupted time series research designs. A one‐tailed t‐test was also computed to test for significant differences in pre‐ and post‐test means in reading achievement. Continuous data collection throughout the programme indicated that all peers were effective in increasing their use of the tutoring behaviours; not all tutors experienced statistically significant increases, however. Both peer tutors and tutees made statistically significant gains in reading accuracy and comprehension over the course of the intervention. 相似文献
11.
Abstract This study investigated the effect of satellite‐delivered instruction on student achievement and attitude in a high school anatomy and physiology course. The experimental group included students from seven high schools enrolled in the satellite‐delivered course. The control group consisted of students from seven high schools in which classroom teachers provided instruction. An experimental versus control matched‐pair design was used in the study. Two hypotheses were tested using the t test for dependent samples. The findings show that there was no significant difference between the experimental group and control group in attitude toward anatomy and physiology. However, on the achievement test, the mean post‐test score of the experimental group was significantly higher than that of the control group. 相似文献
12.
Basri Atasoy Huseyin Akkus Hakki Kadayifci 《Research in Science & Technological Education》2013,31(3):267-282
The purpose of this study was to compare the effects of a conceptual change approach over traditional instruction on tenth‐grade students’ conceptual achievement in understanding chemical equilibrium. The study was conducted in two classes of the same teacher with participation of a total of 44 tenth‐grade students. In this study, a pre‐test/post‐test control group semi‐experimental design pattern was used. During teaching the topic of chemical equilibrium concepts in the chemistry curriculum, a conceptual change approach was applied in the experimental group whereas traditional instruction was followed in the control group. Data were analysed with an independent samples t‐test, and an analysis of covariance using the pre‐test scores as the covariate. The results showed that the conceptual change approach was statistically more effective than traditional instruction in terms of students’ conceptual understanding. After the six‐week intervention, interviews were conducted with 18 selected students in the study. In the interviews a prevailing alternative conception was detected beside many alternative conceptions. When they were asked to compare equilibrium constants of two different reactions they mostly responded to mean that ‘the bigger the mol number of the products, the bigger the equilibrium constant’ without considering what proportions the reactants were transformed into products in a reaction. Also, in this study a two‐tier multiple choice test was developed related to chemical equilibrium to detect students’ concepts and alternative concepts. 相似文献
13.
Lois J. Baron 《Learning, Media and Technology》1985,11(1):49-55
A major concern in the area of television's effect on children has been how children interpret both the content and form of the medium. As a form of representation, television has its own code. Messages are transmitted by manipulating this code. The last decade has seen a growth of interest in ways of combating the influence television has on children by increasing their awareness and understanding of the conventions of the medium. The research described here is a media literacy project that takes children ‘behind the scenes’ of television's ‘magic’ by providing them with the opportunity of producing a programme for community access cable television. This was accomplished by having two groups of grade five children experience a 10‐week media literacy curriculum. Following the curriculum phase, one group ‘produced’ a programme for telecast at the local cable studio. Pre‐, post‐, and long‐term media literacy tests were administered to the two groups and a control group. Results reveal that not only did the groups who had experienced the media literacy curriculum perform significantly better on the test, but also that their scores improved significantly between post‐and long‐term testing. In conclusion, the media literacy curriculum led to significant increases in understanding of media‐related concepts. 相似文献
14.
The aim of this study is to examine the effectiveness of collaborative learning with hints and peer tutoring with hints, and individual learning with hints in chemistry laboratory education in a secondary school. A total of 96 eleventh graders participated in this study. The study has a randomized pre‐test and post‐test design with a delayed post‐test. During the four‐week intervention, students were required to carry out eight lab tasks in total. The students filled in a 17‐item self‐assessment of learning gain questionnaire on the last day. Analyses of students’ learning achievements showed that students in both the collaborative learning and peer tutoring situations outperformed those learning individually with hints. The delayed post‐test, which was administered three months later, revealed that students who had been in the peer tutoring situation outscored those in the collaborative learning situation. Student self‐assessment questionnaires on learning gain provided further details in this regard. 相似文献
15.
The purpose of this research study was to examine the effectiveness of problem‐based learning (PBL) on eleventh grade students’ understanding of ‘The effects of temperature, concentration and pressure on cell potential’ and also their social skills. Stratified randomly selected control and experimental groups with 20 students each were used in this study. To determine their misunderstandings and misconceptions about closely related, previously covered subjects, such as oxidation‐reduction reactions and electrochemical cells, interviews were conducted. Following a preparatory lesson where remediation of misconceptions were undertaken, a pre‐test was given, and no significant difference was found between the two groups of students (p>0.05). Then, the same teacher taught factors that affect cell potential using a teacher‐centred traditional format to the control group, and a PBL format to the experimental group. Results from the post‐test of both groups (p<0.05) showed that PBL is effective on students’ achievement, remedying formation of misconceptions in a significant way. Interviews were also conducted with PBL students to determine their beliefs according to PBL activity. The findings according to interviews revealed that students in the PBL class were more motivated, self‐confident, willing to problem‐solve and share knowledge, and were more active in cooperative group activities than the traditionally‐taught students. 相似文献
16.
17.
Shraga Serok 《Assessment & Evaluation in Higher Education》1991,16(2):157-164
An experiment applying Gestalt methods to reduce test anxiety in students is described. Test anxiety is seen as a specific and relatively focused fear pattern. Viewed from a Gestalt therapy approach, anxiety is perceived as a process that affects the physiological, emotional, and intellectual components, as well as a non‐differentiative state between present and future.
It was hypothesised that test anxiety could be reduced if students were taught relaxation and other appropriate techniques. Volunteers were assigned to either an experimental or control group and measured “pre and post”, using Spielberger's State‐Trait Anxiety Inventory and a self‐report question. The results, which show a significant difference between the pre and post scores of the experimental group on the A‐State and self‐report scales, indicate that the Gestalt techniques applied were effective in reducing test anxiety. 相似文献
18.
Jana A. Hovland Virginia G. Carraway‐Stage Artenida Cela Caitlin Collins Sebastián R. Díaz Angelo Collins Melani W. Duffrin 《Journal of Food Science Education》2013,12(4):81-86
Health professionals and policymakers are asking educators to place more emphasis on food and nutrition education. Integrating these topics into science curricula using hand‐on, food‐based activities may strengthen students’ understanding of science concepts. The Food, Math, and Science Teaching Enhancement Resource (FoodMASTER) Initiative is a compilation of programs aimed at using food as a tool to teach mathematics and science. Previous studies have shown that students experiencing the FoodMASTER curriculum were very excited about the activities, became increasingly interested in the subject matter of food, and were able to conduct scientific observations. The purpose of this study was to: (1) assess 4th graders food‐related multidisciplinary science knowledge, and (2) compare gains in food‐related science knowledge after implementation of an integrated, food‐based curriculum. During the 2009–2010 school year, FoodMASTER researchers implemented a hands‐on, food‐based intermediate curriculum in eighteen 4th grade classrooms in Ohio (n = 9) and North Carolina (n = 9). Sixteen classrooms in Ohio (n = 8) and North Carolina (n = 8), following their standard science curricula, served as comparison classrooms. Students completed a researcher‐developed science knowledge exam, consisting of 13 multiple‐choice questions administered pre‐ and post‐test. Only subjects with pre‐ and post‐test scores were entered into the sample (Intervention n = 343; Control n = 237). No significant differences were observed between groups at pre‐test. At post‐test, the intervention group scored (9.95 ± 2.00) significantly higher (p = 0.000) than the control group (8.84 ± 2.37) on a 13‐point scale. These findings suggest the FoodMASTER intermediate curriculum is more effective than a standard science curriculum in increasing students’ multidisciplinary science knowledge related to food. 相似文献
19.
Recent calls have been made for a fundamental reorientation in higher education from a curriculum that simply transmits information (learner as receiver) to one that encourages students actively to construct their own knowledge and practice using new skills and concepts (learner as constructor). In response, the Case Analysis in Organisational Situations (CAOS) assessment tool was developed for use in teaching organisational behaviour. It follows the principles of problem‐based learning and group work, using an unfolding case design. A pre‐test (n=365), immediate post‐test (n=323) and delayed post‐test (n=129) design was implemented to evaluate the effectiveness of this new learning tool. The assessment of student approaches to learning revealed that students were more likely to adopt a deep approach to learning at the end of CAOS than at the beginning. In general, the results show that CAOS is a useful web‐based tool that promotes learning in organisational behaviour. The benefits of CAOS and some suggested improvements to the existing CAOS format are discussed. 相似文献
20.
Influence of a catalan peer tutoring programme on reading comprehension and self‐concept as a reader
This study relates to the results obtained in the development of reading comprehension (RC) and self‐concept as a reader in students who participated in Llegim en parella (Reading in pairs), a Catalan peer tutoring programme. The research combines a quasi‐experimental design with the use of comparison groups and pre‐tests/post‐tests for both variables; a qualitative approach is adopted by analysing the interactions in order to detect influencing factors. Statistically significant results were obtained for all students in terms of RC but only for student tutors in relation to reading self‐concept. The factors involved in the improvements identified in RC are: reading strategies, scaffolding in inferential and deep comprehension questions. Regarding self‐concept, the tutor's own role, his involvement with their tutees' progress, reading aloud and the metacognitive reflection processes, are all factors that enable us to explain the improvement in the tutor's reading self‐perception. The positive influence of peer tutoring on the development of reading competence through this programme is clearly evident. 相似文献