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Effect of Cooperative Learning Strategies on Students' Understanding of Concepts in Electrochemistry 总被引：1，自引：0，他引：1
Burcin Acar Leman Tarhan 《International Journal of Science and Mathematics Education》2007,5(2):349-373
The present study was conducted to investigate the degree of effectiveness of cooperative learning instruction over a traditional
approach on 11th grade students' understanding of electrochemistry. The study involved forty-one 11th grade students from
two science classes with the same teacher. To determine students' misconceptions concerning electrochemistry, the Electrochemistry
Concept Test consisting of 8 open-ended and 12 multiple-choice questions was used as a pre-test and some students were interviewed.
According to the results, twenty-four misconceptions (six of them initially identified) about electrochemistry were identified.
The classrooms were randomly assigned to a control group (traditional instruction, 21 students) and an experimental group
(cooperative learning based on a constructivist approach, 20 students). After instruction, the same test was administered
to both groups as a post-test. The results from the t-test indicated that the students who were trained using cooperative
learning instruction had significantly higher scores in terms of achievement than those taught by the traditional approach.
According to the post-test and interviews, it was also found that instruction for the cooperative group was more successful
in remediation of the predetermined misconceptions. 相似文献
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Leman 《中学生(作文版)》2012,(4):26-29
我们为什么喜欢看电影？因为电影里包含着无穷无尽的想象力,很多人类目前无法做到的事情,都能在荧幕上实现。于是,骑肴扫帚飞的哈利·波特和勇敢强悍的擎天柱都成了我们熟知并喜爱的电影角色。而这些,都是依靠电影特效技术才能成形的。 相似文献
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The purpose of this study was to develop a valid and reliable scale for assessing high school students’ self-directed learning skills. Based on a literature review and data obtained from similar instruments, all skills related to self-directed learning were identified. Next, an item pool was prepared and administered to 255 students from various high schools. To test the suitability of the gathered data, exploratory factor analysis was performed. The results revealed that there were correlations between the items, factor analysis could be conducted and nine factors were obtained. A confirmatory factor analysis (CFA) was performed concerning the quality of the factor structure. The results of the CFA confirmed the nine-factor solution. The final version of the scale has a nine-factor structure and includes a total of 40 items. This instrument uses a five-point Likert-type scale and was termed the Self-Directed Learning Skills Scale (SDLSS). 相似文献
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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
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This study aimed to investigate the effects of inquiry-based laboratory activities on high school students’ understanding of electrochemistry and attitudes towards chemistry and laboratory work. The participants were 62 high school students (average age 17 years) in an urban public high school in Turkey. Students were assigned to experimental (N?=?30) and control groups (N?=?32). The experimental group was taught using inquiry-based laboratory activities developed by the researchers and the control group was instructed using traditional laboratory activities. The results of the study indicated that instruction based on inquiry-based laboratory activities caused a significantly better acquisition of scientific concepts related to electrochemistry, and produced significantly higher positive attitudes towards chemistry and laboratory. In the light of the findings, it is suggested that inquiry-based laboratory activities should be developed and applied to promote students’ understanding in chemistry subjects and to improve their positive attitudes. 相似文献
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Leman Tarhan Hulya Ayar-Kayali Raziye Ozturk Urek Burcin Acar 《Research in Science Education》2008,38(3):285-300
This research study aims to examine the effectiveness of a problem-based learning (PBL) on 9th grade students’ understanding
of intermolecular forces (dipole–dipole forces, London dispersion forces and hydrogen bonding). The student’s alternate conceptions
about intermolecular bonding and their beliefs about PBL were also measured. Seventy-eight 9th grade students were stratified
by cognitive levels and then randomly assigned to experimental (PBL, 40 students) and control (lecture-style teaching, 38
students) groups. Following a preparatory lesson where activation and remediation of existing knowledge occur, a pre-test
was given, and no significant difference was found between the two groups of students (p > .05). After the instruction was completed, a post-test and also a questionnaire related to the quality of the problem,
the teacher’s role and group functioning were administered. Results from the post-test of both groups (p < .05) and questionnaire showed that PBL is affective on students’ achievement, remedying formation of alternate conceptions
and also social skills. 相似文献
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Hope Leman 《Medical reference services quarterly》2013,32(2):175-182
This column describes a process that can be used to market a hospital library Web service for use by external entities and monitor its use by the worldwide audience (e.g., medical, academic and public libraries, offices of research administration). Included are concrete suggestions to help hospital librarians in their efforts to encourage adoption of their Web service by other institutions. 相似文献
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ABSTRACTWomen are underrepresented in Science, Technology, Engineering and Mathematics subjects with more girls leaving these subjects at every stage in education. The current research used a scenario methodology to examine the impact of teacher feedback on girls’ and boys’ choices to study a specific science subject, engineering. British participants aged 13 (N?=?479) were given scenarios where a new teacher encouraged them to take engineering using person feedback which focussed on their abilities, process feedback which focussed on their effort levels or gave them no reason. Results suggested that both boys and girls were more likely to select to study engineering when they received person feedback rather than process or no feedback. Young people also thought that ability was more important to being successful in science than in non-science subjects.This suggests young people feel that ability is needed to succeed in science subjects and person feedback can lead them to believe that they have this ability. Therefore, teacher feedback which gives ability attributions for possible success could be used to encourage more young people to persist in science. However, the potentially negative longer term outcomes of ability attributions and how they may be negated are also discussed. 相似文献
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丁乐慢 《温州职业技术学院学报》2011,11(2):79-82
汉语因独具韵感、美感在世界语言之林独树一帜。然而,现代汉语历经百年,面对网络媒体时代,美感却步步褪色。因此,梳理百年现代汉语写作历程,关注当下汉语技术化倾向,并重审当下汉语写作实践,探寻＂好的中文＂标准,以创造优质的汉语,重新挖掘现代汉语写作的语感美。 相似文献