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1.
The purpose of the study was to investigate the effectiveness of case-based learning instruction over traditionally designed chemistry instruction on eleventh grade students’ epistemological beliefs and their attitudes toward chemistry as a school subject. The subjects of this study consisted of 63 eleventh grade students from two intact classes of an urban high school instructed with same teacher. Each teaching method was randomly assigned to one class. The experimental group received case-based learning and the control group received traditional instruction. At the experimental group, life cases were presented with small group format; at the control group, lecturing and discussion was carried out. The results showed that there was a significant difference between the experimental and control group with respect to their epistemological beliefs and attitudes toward chemistry as a school subject in favor of case-based learning method group. Thus, case base learning is helpful for development of students’ epistemological beliefs and attitudes toward chemistry.  相似文献   

2.
The attributes of a commercial microcomputer software package were evaluated as a supplement to traditional instruction in general chemistry classes in a suburban public high school. During a unit of study of writing and naming formulas and balancing chemical equations, the experimental group received reinforcement via microcomputer while the control group used parallel worksheet exercises over a period of three weeks for concept reinforcement. Analysis of achievement scores indicated significantly higher scores among the students in the control group. In order to ascertain any possible differential effects favoring either method for students at varying cognitive development levels, the study investigated the relationship between treatment (CAI versus worksheet) and development stage; no significant interactions were discovered.  相似文献   

3.
This study examined the differential effectiveness of traditional and discovery methods of instruction for the teaching of science concepts, understandings about science, and scientific attitudes, to learners at the concrete and formal level of cognitive development. The dependent variables were achievement, understanding science, and scientific attitude; assessed through the use of the ACS Achievement Test (high school chemistry, Form 1979), the Test on Understanding Science (Form W), and the Test on Scientific Attitude, respectively. Mode of instruction and cognitive development were the independent variables. Subjects were 120 Form IV (11th grade) males enrolled in chemistry classes in Lusaka, Zambia. Sixty of these were concrete reasoners (mean age = 18.23) randomly selected from one of the two schools. The remaining 60 subjects were formal reasoners (mean age 18.06) randomly selected from a second boys' school. Each of these two groups was randomly split into two subgroups with 30 subjects. Traditional and discovery approaches were randomly assigned to the two subgroups of concrete reasoners and to the two subgroups of formal reasoners. Prior to instruction, the subjects were pretested using the ACS Achievement Test, the Test on Understanding Science, and the Test on Scientific Attitude. Subjects received instruction covering eight chemistry topics during approximately 10 weeks. Posttests followed using the same standard tests. Two-way analysis of covariance, with pretest scores serving as covariates was used and 0.05 level of significant was accepted. Tukey WSD technique was used as a follow-up test where applicable. It was found that (1) for the formal reasoners, the discovery group earned significantly higher understanding science scores than the traditional group. For the concrete reasoners mode of instruction did not make a difference; (2) overall, formal reasoners earned significantly higher achievement scores than concrete reasoners; (3) in general, subjects taught by the discovery approach earned significantly higher scientific attitude scores than those taught by the traditional approach. The traditional group outperformed the discovery group in achievement scores. It was concluded that the traditional approach might be an efficient instructional mode for the teaching of scientific facts and principles to high school students, while the discovery approach seemed to be more suitable for teaching scientific attitudes and for promoting understanding about science and scientists among formal operational learners.  相似文献   

4.
The main purpose of this study was to investigate the effects of active learning on preservice teachers' dignity, energy, self-management, community, and awareness (DESCA) abilities, attitudes toward teaching, and attitudes toward science. Third year preservice teachers (n = 77) from two different classes were involved in the study. One intact class was assigned as the experimental group, whereas the other intact class was assigned as the comparison group. The comparison group students received the instruction by traditional teaching, and the experimental group received instruction through an active learning paradigm. DESCA abilities and attitudes were measured before and after instruction. Results revealed that there was a significant difference favoring the active learning instruction on preservice teachers' DESCA scores; however, there was no significant difference on preservice teachers' attitudes toward teaching and science.  相似文献   

5.
This study investigated the differential effects of two modes of instructional program (conceptual change oriented and traditionally designed) and gender difference on students' understanding of heat and temperature concepts, and their attitudes toward science as a school subject. The subjects of this study consisted of 72 seventh grade students from two General Science Classes taking the course from the same teacher. Each teaching method was randomly assigned to one class. The experimental group received reinforcement via the conceptual change texts while the control group utilized traditionally designed science texts over a period of four weeks. Analysis of covariance was used. Logical thinking ability was taken as a covariate. The results showed that the conceptual change oriented instruction produced significantly greater achievement in understanding of heat and temperature concepts. The result for science attitudes as a school subject showed no significant difference between the experimental and control groups. Also, no significant difference was found between the performance of females and that of males in terms of learning heat and temperature concepts and attitudes toward science, but the interaction of treatment regarding to gender was significant for learning the concepts. In addition, it was found that students' logical thinking ability accounted for a significant portion of variation in heat and temperature concepts achievement.  相似文献   

6.
This study examined the effects of team teaching on selected attitudes and achievement of ninth grade students in English and World History after 1 year. Seventy-four ninth grade students from a local school were randomly assigned to a team teaching treatment group while the remaining seventy-one members of the freshman class received traditional instruction in three separate classrooms. A teacher constructed test was employed to measure achievement in subject matter, and a personality inventory was used to measure changes in selected attitudes. The findings indicated that the team teaching approach did not appear to complement academic growth over traditional teaching methods but it did have a significant impact on student attitudes toward teachers, interest in subject matter, sense of personal freedom, and self-reliance.  相似文献   

7.
This study investigated the effect of conceptual change text-oriented instruction over traditional instruction on students' understanding of solution concepts (e.g., dissolving, solubility, factors affecting solubility, concentrations of solutions, types of solutions, physical properties of solutions) and their attitudes towards chemistry. The sample of this study consisted of 87 undergraduate students from two classes enrolled in an introductory chemistry course. One of the classes was assigned randomly to the control group, and the other class were assigned randomly to the experimental group. During teaching the topic of solution concepts in the chemistry curriculum, a conceptual change text-oriented instruction was applied in the experimental group whereas traditional instruction was followed in the control group. The results showed that the students in the experimental group performed better with respect to solution concepts. In addition, it has been found that there was no significant difference between the attitudes of students in the experimental and control groups towards chemistry.  相似文献   

8.
The study was designed to determine differences between two chemistry teaching methods on students' chemistry achievement and attitudes toward science. The two methods were the large lecture-demonstration and small-group laboratory approaches to teaching chemistry. The subjects were 74 eleventh-grade Saudi Arabian students randomly assigned to the two treatment groups. The findings revealed that the small-group laboratory students exhibited significantly greater chemistry achievement than students in the lecture-demonstration group on both immediate and delayed posttests. The results also indicated that students taught by the lab approach possessed more desirable attitudes toward science.  相似文献   

9.
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   

10.
The study investigated the effectiveness of a computer-assisted instruction (CAI) study skills program on students’ behaviors and attitudes. The subjects were 88 students (experimental group) who completed the CAI program and 67 students (control group) who did not have access to the program. All subjects responded three times during the semester to the Survey of Study Habits and Attitudes inventory. Trend analyses revealed that during the semester the scores for the experimental group increased significantly and the scores for the control group decreased significantly. The findings showed that the CAI program can effectively present the information on effective study skills and how to develop such skills.  相似文献   

11.
Abstract

The relative effectiveness of a problem-solving-based computer-assisted instruction (PSCAI) and a lecture-Internet-discussion instruction (LIDI) were compared for Taiwan senior high school students' science achievement and attitudes toward science. A pretest-posttest control group experimental design involving 8 classes was used. Experimental-group students (n = 156) received the PSCAI; comparison-group students (n = 138) received the LIDI. Instruments included the Earth Science Achievement Test (C. Y. Chang, 2000) and the Attitudes Toward Earth Science Inventory (C. Y. Chang & S. L. Mao, 1999). A multivariate analysis of covariance suggested that (a) students taught using the PSCAI scored higher but not significantly higher than did students in the LIDI group and (b) there were statistically significant differences in favor of the PSCAI on student attitudes toward the subject matter.  相似文献   

12.
The purpose of this study is to examine the effect of creative drama-based instruction on seventh graders’ science achievements in the ecology and matter cycles unit and their attitudes toward science. The study is an experimental study carried out in one of the public elementary schools in Turkey during 2005–2006 schooling year. An ecological concept achievement test was developed and administered to 45 students in two classes (as control and experimental group) of an elementary school before and after the treatment. The experimental group received creative drama-based instruction and the control group received traditional instruction. A guiding instruction material which contains six lesson plans in the subject was constructed for the teacher to administer creative drama-based instruction. The topics of ecosystems and matter cycles were taught to the both of groups for 3 weeks. A science attitude test was administered to both groups before and after the treatment. The results revealed a statistically significant difference between the mean scores of the both groups with respect to achievement in the ecology concepts and median of the attitudes toward science in favour of the experimental group after the treatment.  相似文献   

13.
This study establishes the effects of a flipped classroom model of instruction on academic performance and attitudes of 66 first-year secondary school students towards chemistry. A pre-test and post-test experimental design was employed to assign students randomly into either the experimental or control group. In order to assess the suitability of using flipped model of instruction, students were divided in two groups. For the first group called the experimental group, a “flipped classroom” was used in which the students were given video lessons and reading materials, before the class to be revised at home. On the other hand, the second group followed traditional methodology, and it was used as control. The rate of reaction knowledge test and the chemistry attitude scale were administered. In addition, the researcher documented classroom observations, experiences, thoughts and insights regarding the intervention in a journal on a daily basis in order to enrich the data. Students were interviewed at the end of the research in order to enrich the qualitative data also. Findings from this study reveal that the flipped instruction model facilitates a shift in students’ conceptual understanding of the rate of chemical reaction significantly more than the control condition. Positive significant differences were found on all assessments with the flipped class students performing higher on average. Students in the flipped classroom model condition benefited by preparing for the lesson before the classes and had the opportunity to interact with peers and the teacher during the learning processes in the classroom. The findings support the notion that teachers should be trained or retrained on how to incorporate the flipped classroom model into their teaching and learning processes because it encourages students to be directly involved and active in the learning.  相似文献   

14.
本研究旨在探讨背诵对提高医学生英语水平的作用。两个平行班（试验班和对照班）接受同一教师相同的授课内容和课时数量,但是试验班增加了16周的背诵练习和背诵考试,试验后的英语水平测试结果（t test）表明背诵对于提高医学生在听力、词汇和写作方面的成绩有积极的作用。  相似文献   

15.
The study examined the effect of supplementing laboratory instruction with problem solving strategy and or practical skills teaching on students' attitude toward chemistry. A total of 286 senior secondary class II students (145 males and 141 females) drawn from four local government areas in Oyo township in Oyo state, Nigeria, took part in the study. A pretest–posttest nonrandomized control group in a quasi-experimental setting using a 4× 2× 2 factorial representation formed the design of the study. Data analysis was done by the use of analysis of covariance but Scheffe post hoc analysis was carried out in the case of significant main effect of the treatment and also in the occasion of significant interaction effect. Graphical illustrations were however used to further explain the interaction effects. The results revealed that the use of enhanced laboratory instructional strategy significantly improved the attitudes of students toward chemistry. The results underscore the need for secondary school chemistry teachers to adopt the use of enhanced laboratory instructional strategy in order to promote good attitude on the part of the students toward learning of chemistry.  相似文献   

16.
The Seventh School Curriculum Reform in Korea was introduced in 2000 to prepare school‐aged Koreans for an information and knowledge‐based society. The reform effort emphasises information and communication technology (ICT) in the K–12 curriculum and a learner‐centred pedagogy. This study examines the contributions of ICT, specifically, computer‐assisted instruction (CAI), in Korean science classrooms. A sample of 234 Korean middle school students was categorised into five achievement groups. Data were collected from pre‐ and post‐achievement test scores and pre‐ and post‐questionnaires for attitudes toward science, future courses, and career aspirations in science. Findings include: (1) the lowest achievement group showed the most significant improvement after CAI (p=.000); (2) an improvement in student achievement in science significantly influenced students’ attitudes toward science (p=.019), future course selections, and career aspirations related to science (p=.000); and (3) boys tended to perform better with CAI than girls. This research provides evidence that CAI has the potential to help lower achieving students in Korean science classes and may encourage enrolment in science.  相似文献   

17.
The increasing use of simulation and other role playing activities as teaching devices prompted this study. It was designed to evaluate changes in cognitive learning and attitudes that could be attributed to participation in a simulation unit. Two junior college political science classes (N = 67) were used for the study. Treatment was randomly assigned. The simulation group participated in a 4-hour unit; the control group received instruction in a “lecture-question-answer” manner.

There was no statistically significant difference in cognitive learning between students in the simulation group and students taught by the “lecture-question-answer” method. Within the limitations of the study design, the analyses showed that simulation produced desirable attitudes and resulted in polarization of feelings toward government.  相似文献   

18.
This study investigated the benefits of computer‐assisted instruction (CAI) for middle‐school students attending remedial reading classes. As a supplement to a strong language‐based reading curriculum, a CAI programme that works on strengthening phonics word identification skills was provided to students in the treatment group. These students were compared with control students taught by the same teacher but without CAI support. Students in the treatment group showed greater reading gains than control students. Group differences in gain scores were significant in the area of decoding skills. These results show that a skills‐based CAI programme can boost decoding for struggling readers in middle school.  相似文献   

19.
Abstract

This study investigated the effects of instruction in environmental education on the attitudes of elementary school children toward the environment. One class of third graders was provided with two hours of environmental education instruction. A comparable class of third graders served as a control group. Both classes were pre- and posttested using an author-designed environmental attitude questionnaire. Analyses of these data showed that 1) the experimental group had significantly improved attitudes on a pre-post basis and 2) this same group had significantly more positive attitudes toward the environment when compared with the control group. When tested again as fifth graders, the experimental group remained significantly more positive toward the environment than the fifth grade control group.  相似文献   

20.
The aim of this study is to compare the effectiveness of conceptual change text instruction (CCT) in the context of energy in chemical reactions. The subjects of the study were 60, 10th grade students at a high school, who were in two different classes and taught by the same teacher. One of the classes was randomly selected as the experimental group in which CCT instruction was applied, and the other as the control group in which traditional teaching method was used. The data were obtained through the use of Energy Concept Test (ECT), the Attitude Scale towards Chemistry (ASC) and Science Process Skill Test (SPST). In order to find out the effect of the conceptual change text on students’ learning of energy concept, independent sample t-tests, ANCOVA (analysis of covariance) and ANOVA (analysis of variance) were used. Results revealed that there was a statistically significant mean difference between the experimental and control group in terms of students’ ECT total mean scores; however, there was no statistically significant difference between the experimental and control group in terms of students’ attitude towards chemistry. These findings suggest that conceptual change text instruction enhances the understanding and achievement.  相似文献   

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