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1.
Forty high school students participated in a study to investigate learning and remembering from physics instruction. At pretest, students received aptitude tests, an alternate form of achievement test (counterbalanced) and a word association (WA) test. Then the 40 students were divided into instruction (N = 28) and control (N = 12) groups. The control group received all subsequent tests but no instruction. The instruction group received physics instruction over five 2-hour sessions. At the end of each session, the WA test was administered; the alternate form of the achievement test was administered at the end of the last session. The instruction and control groups did not differ significantly in achievement at pretest. The instruction group showed a significant gain from pre- to posttest; no such gain was found for the control group. The instruction and control groups did not differ on the number of responses generated on the WA test at pretesting. The number of responses given by students in the instruction group increased significantly from test 1 (pretest) to test 6 (posttest). For the control group, the number of responses increased initially and then leveled out well below the instruction group data. When WA test responses were tallied for “constrained” responses (i.e., tallying only those concepts found in equations defining the stimulus word), the number of constrained responses increased consistently for the instruction group. For the control group, constrained responses showed an initial increase and then leveled out well below instruction group data. Finally, the aptitude, achievement, and WA data were intercorrelated. This analysis suggests that for students who perform well in solving problems at the end of instruction, the physics concepts became meaningful soon after they were introduced. Subsequently, these students were able to consolidate, in memory, the meaning of the concepts and the interrelations among these concepts in the form of equations. Students not able to solve problems at the end of instruction seemed to be completing the process of acquiring the meaning of the concepts.  相似文献   

2.
This study examined the social preference nominations (i.e., “liked most” and “liked least”) in relation to peer group and classroom social dynamics in a sample of 622 fifth graders from 11 schools in a southeastern state. Liked most and liked least nominations were given to a small concentration of students within classrooms. The top five nominees for liked most and liked least tended to be in peer groups and associated with at least one classmate who shared their position as a top nominee. The majority of liked most nominations in a classroom were made toward members inside the nominator's group, whereas the majority of liked least nominations were made toward peers outside one's group. Students in the same peer group were more likely to nominate the same peers as liked most than were students who did not affiliate together. In contrast, the concordance for liked least nominations was moderate at both the peer‐group and classroom level. Implications for school‐based social interventions are discussed. © 2009 Wiley Periodicals, Inc.  相似文献   

3.
Anatomy educators are being tasked with delivering the same quantity and quality of material in the face of fewer classroom and laboratory hours. As a result they have turned to computer‐aided instruction (CAI) to supplement and augment curriculum delivery. Research on the satisfaction and use of anatomy videos, a form of CAI, on examination performance continues to grow. The purpose of this study was to describe the usage and effect on examination scores of a series of locally produced anatomy videos after an 11% curriculum reduction. First‐year medical students (n = 40) were given access to the videos and the prior year's students (n = 40) were used as historical controls. There was no significant difference in demographics between the two groups. The survey response rate was 85% (n = 34) in the experimental group. The students found the videos to be highly satisfying (median = 5 on a five‐point Likert scale, interquartile range = 1) and used them on average 1.55 times/week (SD ± 0.77). Availability of the videos did have a statistically significant effect (4% improvement) on the final laboratory examination (p = 0.039). This suggests that the videos were a well‐received form of CAI that may be useful in bridging the gap created by a reduction in gross anatomy course contact hours. Anat Sci Educ 7: 273–279. © 2013 American Association of Anatomists.  相似文献   

4.
This article describes the development of an interactive computer‐based laboratory manual, created to facilitate the teaching and learning of medical histology. The overarching goal of developing the manual is to facilitate self‐directed group interactivities that actively engage students during laboratory sessions. The design of the manual includes guided instruction for students to navigate virtual slides, exercises for students to monitor learning, and cases to provide clinical relevance. At the end of the laboratory activities, student groups can generate a laboratory report that may be used to provide formative feedback. The instructional value of the manual was evaluated by a questionnaire containing both closed‐ended and open‐ended items. Closed‐ended items using a five‐point Likert‐scale assessed the format and navigation, instructional contents, group process, and learning process. Open‐ended items assessed student's perception on the effectiveness of the manual in facilitating their learning. After implementation for two consecutive years, student evaluation of the manual was highly positive and indicated that it facilitated their learning by reinforcing and clarifying classroom sessions, improved their understanding, facilitated active and cooperative learning, and supported self‐monitoring of their learning. Anat Sci Educ 6: 342–350. © 2013 American Association of Anatomists.  相似文献   

5.
In this study we examined the effectiveness of Tekster [Texter], a comprehensive program for writing for the upper elementary grades, combining strategy instruction, text structure instruction, and the teaching of self-regulation skills with observational learning, explicit instruction, and (guided) practice to address both the focus of instruction (what is taught) and the mode of instruction (how it is taught). Further, we investigated the added value of a professional development program for teachers on the effectiveness and implementation of the intervention in the classroom, by adopting a teachers-training-teachers approach. One group of teachers (N = 31) was trained by experts, and subsequently trained their colleagues (N = 37). Quasi-experimental results showed that students’ writing performance improved after the intervention (ES = 0.55), while generalizing over tasks, students, and teachers. Further, teachers became more positive and felt more efficacious about teaching writing after the intervention. There were no differences between trainers and trainees, which provides evidence for the spillover effect of professional development. To get more insight in how teachers implemented the intervention in their classroom and in the social validity of the intervention and the teachers-training-teachers approach, we triangulated post-intervention questionnaires with classroom observations and interviews. This mixed methods approach revealed that both trainers and trainees were highly satisfied with the program and easily adapted their focus of instruction. However, for adjusting the mode of instruction more teacher support seems to be needed.  相似文献   

6.
ABSTRACT

The authors compared the performance of students who received integration of number sense activities in instruction with students who received instruction using regular mathematics textbooks. Two classes of third-grade students (N = 60) were randomly assigned to experimental and control groups. Students in each group were given a pretest, post I test, and post II test, and were interviewed individually across 20 class periods of intervention. Results showed that the performance of the students in the experimental group was significantly higher than those in the control group. The interview data also showed that the students in the experimental group performed better than students in the control group in flexible and effective ways to use number sense.  相似文献   

7.
This study investigated the use of a hands-on laboratory program as a means of improving student attitude toward science and increasing student achievement levels in science knowledge. Using a posttest-only control group design, curriculum referenced objective examinations were used to measure student achievement in science knowledge, and a posttest Q-sort survey was used to measure student attitude toward science. A one-way analysis of variance compared the groups' differences in achievement and attitude toward science. Analysis of covariance was used to determine the effect of the laboratory treatment on the dependent achievement variable with attitude toward science as the covariable. The findings showed that students who had regular laboratory instruction (a) scored significantly higher (p < .01) on the objective examination of achievement in science knowledge than those who had no laboratory experiences; (b) exhibited a moderate, positive correlation (r = .406) between their attitude toward science and their achievement; and (c) scored significantly higher (p < .01) on achievement in science knowledge after these scores were adjusted on the attitude toward science covariable. There were no significant differences in achievement or attitude toward science for the limited English proficiency groups. It was concluded that laboratory instruction influenced, in a positive direction, the students' attitude toward science, and influenced their achievement in science knowledge. It was recommended that science instruction include a regular laboratory experience as a demonstrated viable and effective instructional method for science teachers. This model of science instruction has been shown to be effective with students of diverse backgrounds who live within large urban centers. J Res Sci Teach 34: 343–357, 1997.  相似文献   

8.
《College Teaching》2013,61(4):142-145
To determine the impact of an assignment and workshop intended to increase students’ information literacy skills, we conducted a quasi-experiment using a pretest-posttest assessment with undergraduate students in four sections of an introduction to developmental psychology course. Two sections (N = 81) received the assignment and instructions only, acting as the control group; two sections (N = 76) received the librarian-led workshop in addition to the assignment and instructions. Results of an independent-samples t-test revealed a significant difference on posttest scores on students’ information literacy skills between those who participated in the workshop and those who did not. There was also a positive change in students’ subjective views of their ability to use the library and online library resources.  相似文献   

9.
The main purpose of this study was to investigate the effects of cooperative learning based on conceptual change approach instruction on ninth-grade students’ understanding in chemical bonding concepts compared to traditional instruction. Seventy-two ninth-grade students from two intact chemistry classes taught by the same teacher in a public high school participated in the study. The classes were randomly assigned as the experimental and control group. The control group (N?=?35) was taught by traditional instruction while the experimental group (N?=?37) was taught cooperative learning based on conceptual change approach instruction. Chemical Bonding Concept Test (CBCT) was used as pre- and post-test to define students’ understanding of chemical bonding concepts. After treatment, students’ interviews were conducted to observe more information about their responses. Moreover, students from experimental groups were interviewed to obtain information about students’ perceptions on cooperative work experiences. The results from ANCOVA showed that cooperative learning based on conceptual change approach instruction led to better acquisition of scientific conceptions related to chemical bonding concepts than traditional instruction. Interview results demonstrated that the students in the experimental group had better understanding and fewer misconceptions in chemical bonding concepts than those in the control group. Moreover, interviews about treatment indicated that this treatment helped students’ learning and increased their learning motivation and their social skills.  相似文献   

10.
The study compared the effects of dynamic geometry software and physical manipulatives on the spatial visualisation skills of first‐year pre‐service mathematics teachers. A pre‐ and post‐test quasi‐experimental design was used. The Purdue Spatial Visualisation Test (PSVT) was used for the pre‐ and post‐test. There were three treatment groups. The first group (n = 34) used Dynamic Geometry Software (DGS) Cabri 3D as a virtual manipulative and the second group (n = 32) used physical manipulatives. In the control group (n = 30), the students received traditional instruction. The results of the study showed that physical manipulatives and DGS‐based types of instruction are more effective in developing the students' spatial visualisation skills than traditional instruction. In addition, students in the DGS‐based group performed better than the physical manipulative‐based group in the views section of the PSVT.  相似文献   

11.
The relative positions of the sun, moon, and earth, their movements, and their relationships are abstract and difficult to understand astronomical concepts in elementary school science. This study proposes a three-dimensional (3-D) virtual reality (VR) model named the Sun and Moon System. This e-learning resource was designed by combining Microsoft Direct3D Library, C++ programming language, and Autodesk 3 Ds Max for constructing models. This learning environment provides a way for teachers to integrate information and technology into their science teaching. Furthermore, this study explored how teaching with the Sun and Moon System affected 128 Taiwanese fourth-grade students’ science achievement. Four classes were randomly divided into comparison and treatment groups. The results show that: (a) students in the treatment group achieved significantly better grades than those in the comparison group under traditional class instruction and (b) the questionnaire results revealed that more than two thirds of the treatment group liked to use the 3-D VR model and would like to introduce it to their classmates. Based on these positive results, we are encouraged to develop more 3-D VR learning environments.  相似文献   

12.
The aim of this study was to improve 7th- and 8th-grade students' (N = 83) compare–contrast reports when writing from sources. An instructional unit was designed and implemented for this purpose. It focused on increasing students' knowledge of compare–contrast text structure and on having students memorize and use a table to plan the structure of their reports. There was a large effect size of instruction, such that students in the instruction group made far greater gains in the holistic and structural quality of their writing (from pretest to posttest) than students in the control group.  相似文献   

13.
Abstract

Fifth-grade students (N = 103) from 4 classrooms were administered a multiple-choice test of Piaget tasks (B. J. Wadsworth, 1996). Fifty of the students were identified as preoperational in their cognitive understanding. Two of the classrooms served as the experimental group for 24 identified students; 26 students were in 2 classrooms that served as the control group. The experimental group received special lessons and activities designed to increase abilities in concrete and abstract thinking. The school had a large Hispanic population; therefore, the students received the instruction in the language in which they demonstrated mastery. Students in the experimental group showed a significantly greater increase in concrete operations than did the control group. All the students in the 2 experimental classrooms indicated greater use of concrete operations than did the students in the 2 control classrooms.  相似文献   

14.
There is growing evidence that targeted instruction can improve diagram comprehension, yet one of the skills identified in the diagram comprehension literature—coordinating multiple representations—has rarely been directly taught to students and tested as a classroom intervention. We created a Coordinating Multiple Representation (CMR) intervention that was an addition to an intervention focused on Conventions of Diagrams (COD) and tested their joint effects on diagram comprehension for near transfer (uninstructed biology diagrams), far transfer (uninstructed geology diagrams), and content learning (biology knowledge). The comparison group received instruction using a previously validated intervention that focused exclusively on COD. Participants were 9th–10th grade biology students (N?=?158 from two schools), whose classes were randomly assigned to COD alone or COD?+?CMR conditions and studied with a pretest–posttest experimental design. Both groups showed significant growth in biology knowledge (d?=?.30–.53, for COD and COD?+?CMR, respectively) and biology diagram comprehension (d?=?.28–.57). Neither group showed far transfer. Analyses of student work products during the interventions suggest that gains were not simply due to the passage of time, because student effort was correlated with gains in both treatment groups. Directions for improving future CMR interventions are discussed.  相似文献   

15.
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   

16.
17.
Abstract

This study extended the internal/external reference model to multiple languages including students’ language of instruction, first foreign language, and second foreign language. We examined whether social and dimensional comparisons play similar roles in the formation of students’ self-concept related to different languages and whether dimensional comparisons result in contrast or assimilation effects. All students had German as the language of instruction and English as the first foreign language. Students were divided into a subsample (N?=?487) learning French as a second foreign language and a subsample (N?=?481) learning Latin. Invariance tests demonstrated that the achievement–self-concept relations were similar across the subsamples, but interesting group differences became apparent when analyzing the French and Latin subsamples separately.  相似文献   

18.
This study assesses some effects of the Computer-Assisted Self-Evaluation (CASE) system of frequent multiple-choice testing with immediate computer feedback; it is part of a larger project aiming to combine the principal strengths of individualized instruction with lecture teaching (Fisher, 1979). Learning and retention are examined in two equivalent groups of undergraduates enrolled in an upper division science course. One group (N =34) received 24 CASE quizzes with immediate feedback and the other (N=30) received two CASE-generated midterms with delayed feedback. Quiz students significantly outperformed Midterm students on the posttest; the Quiz section scored nine percentage points higher on rote items and fourteen points higher on meaningful items. Quiz students also had more positive attitudes toward and were more involved in the course. On a retention test given two years later, the Quiz Group scored eight percentage points higher than the Midterm Group on meaningful items. This study suggests that, contrary to popular opinion, multiple-choice questions promote meaningful learning at least as well as, and possibly better than, rote learning. The CASE system appears to be about as effective as other forms of frequent testing and immediate feedback in enhancing learning, and it provides a simple, cost-effective means of individualized testing in large lecture classes.  相似文献   

19.
A treatment group of three sections of a college art design class was given instruction that included the use of computers to complete design projects. The art design course covers the basic concepts of design and two-dimensional materials and the use of line, colour, illusion of space or mass, texture, value, shape, and size in composition. A control group of three sections completed the same assignments as the treatment group without computers. Both groups of students were then surveyed about their attitudes toward using computers in the course. Both the treatment group and the control group perceived the use of computers in a basic art design class as worthwhile. Both groups perceived the use of computers in a basic art design class as enhancing instruction. The treatment group had a more positive response to the computer as a design tool than did the control group. Survey responses by the treatment group documented that design projects used in the study needed improvement. Further studies should focus on best practices in the use of computers in art education.  相似文献   

20.
The major purpose of this study was to investigate the effects of STS (Science-Technology-Society) instruction on a group of Taiwanese female tenth graders' cognitive structure outcomes. This study further examined the role of student scientific epistemological beliefs on such effects. One hundred and one female tenth graders were assigned to either a STS-oriented instruction group or a traditional teaching group and then this study conducted a eight-month research treatment. Students' interview details, analysed through a 'flow map' method, indicated that STS group students performed better in terms of the extent, richness and connection of cognitive structure outcomes than did traditional group students. Further analyses suggested that STS instruction was especially beneficial to students having epistemological views more oriented to constructivist views of science, particularly in the beginning stage of STS instruction. This implies that learners' scientific epistemological beliefs may be an important factor mediating the implementation of STS-oriented instruction.  相似文献   

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