首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献，搜索用时 93 毫秒
1.
Despite showing robust benefits in lab-based research, there remain relatively few studies exploring the spacing effect in educational contexts with meaningful materials. In this study, participants (N = 169 undergraduate students) attended a simulated university lecture where they were presented with natural science curriculum material. Participants reviewed the material either one day or eight days after the lecture via an online review. Participants completed a final test on the material five weeks after each respective review. During the review and final test participants were asked both factual and higher-level (application) questions. Results showed that reviewing material eight days after the lecture led to better final test performance for both types of questions when compared to reviewing only one day after the lecture. This study suggests that spaced review is a robust and effective strategy that can be and should be adapted to classroom practice.  相似文献   

2.
Chemistry instructors in teaching laboratories provide expert modeling of techniques and cognitive processes and provide assistance to enrolled students that may be described as scaffolding interaction. Such student support is particularly essential in laboratories taught with an inquiry-based curriculum. In a teaching laboratory with a high instructor-to-student ratio, mobile devices can provide a platform for expert modeling and scaffolding during the laboratory sessions. This research study provides data collected on the effectiveness of podcasts delivered as needed in a first-semester general chemistry laboratory setting. Podcasts with audio and visual tracks covering essential laboratory techniques and central concepts that aid in experimental design or data processing were prepared and made available for students to access on an as-needed basis on iPhones® or iPod touches®. Research focused in three areas: the extent of podcast usage, the numbers and types of interactions between instructors and student laboratory teams, and student performance on graded assignments. Data analysis indicates that on average the podcast treatment laboratory teams accessed a podcast 2.86 times during the laboratory period during each week that podcasts were available. Comparison of interaction data for the lecture treatment laboratory teams and podcast treatment laboratory teams reveals that scaffolding interactions with instructors were statistically significantly fewer for teams that had podcast access rather than a pre-laboratory lecture. The implication of the results is that student laboratory teams were able to gather laboratory information more effectively when it was presented in an on-demand podcast format than in a pre-laboratory lecture format. Finally, statistical analysis of data on student performance on graded assignments indicates no significant differences between outcome measures for the treatment groups when compared as cohorts. The only statistically significant difference is between students who demonstrated a high level of class participation in the concurrent general chemistry lecture course; for this sub-group the students in the podcast treatment group earned a course average that was statistically significantly higher than those in the lecture treatment group.  相似文献   

3.
《Learning and Instruction》2006,16(4):279-294
This study investigates the effects of the learning/teaching environment on students' approaches to learning (i.e. combination of intention and learning strategies) and compares a lecture based to a student-activating setting within the first year of elementary teacher education. Data collection (N = 790) was carried out using a pre-test/post-test method by means of the Approaches to Learning and Studying Inventory (ALSI). Though students' approaches were similar at the start of the course, a clear distinction was found after experiencing the lecture based and student-activating teaching/learning environments. However, the direction of change was opposite to the premise that student-activating instruction deepens student learning. Instead, the latter pushed students towards a Surface Approach to learning and students' Strategic Approaches suffered significant lowering.  相似文献   

4.
In two studies, we investigated whether a recently developed psychometric instrument can differentiate intrinsic, extraneous, and germane cognitive load. Study I revealed a similar three-factor solution for language learning (n = 108) and a statistics lecture (n = 174), and statistics exam scores correlated negatively with the factors assumed to represent intrinsic and extraneous cognitive load during the lecture. In Study II, university freshmen who studied applications of Bayes' theorem in example–example (n = 18) or example–problem (n = 18) condition demonstrated better posttest performance than their peers who studied the applications in problem–example (n = 18) or problem–problem (n = 20) condition, and a slightly modified version of the aforementioned psychometric instrument could help researchers to differentiate intrinsic and extraneous cognitive load. The findings provide support for a recent reconceptualization of germane cognitive load as referring to the actual working memory resources devoted to dealing with intrinsic cognitive load.  相似文献   

5.
Abstract

In this article, the practicability of introduction of computer multimedia as an educational tool was compared with the traditional approach for training sugarcane growers in ratoon management practices in three villages of Tamil Nadu state, India using pre-test, post-test control group experimental design.

A CD-ROM was developed as a multimedia resource to support the training process using Macromedia Flash as the authorware. Three modes of message delivery—traditional lecture alone, lecture followed by multimedia and multimedia alone were analyzed for their effectiveness in terms of knowledge gain, learning index and extent of adoption. The group which was exposed to lecture followed by multimedia had better knowledge gain and learning index. Farmers perceived that the use of different multimedia building blocks made it an interesting and educative tool. The message, when given through lecture alone was perceived as boring and monotonous with limited attention span. The extent of adoption of ratoon management practices was almost on par; however the group which had received instructions through lecture followed by computer multimedia had a better adoption rate. Such a comparative analysis is an opportunity for a better understanding of the role that multimedia could play in technology transfer to farmers.  相似文献   

6.
In spite of advances in physics pedagogy, the lecture is by far the most widely used format of instruction. We investigated students’ understanding and perceptions of the content delivered during a physics lecture. A group of experts (physics instructors) also participated in the study as a reference for the comparison. During the study, all participants responded to a written conceptual survey on sound propagation. Next, they looked for answers to the survey questions in a videotaped lecture by a nationally known teacher. As they viewed the lecture, they indicated instances, if any, in which the survey questions were answered during the lecture. They also wrote down (and if needed, later explained) the answer, which they perceived was given by the instructor in the video lecture. Students who participated in the study were enrolled in a conceptual physics course and had already covered the topic in class before the study. We discuss and compare students’ and experts’ responses to the survey questions before and after the lecture.  相似文献   

7.
The present study examined the role of preparing to teach (i.e., teaching expectancy) and actually teaching (i.e., explaining to others) on immediate and long-term learning. In Experiment 1, participants studied a base version or an enhanced version of a paper-based lesson on how the Doppler Effect works with the expectation of taking a test on the material or with the expectation of teaching the material by providing a video-recorded lecture. Results indicated that those who prepared to teach (without actually teaching) outperformed those who prepared for a test on an immediate comprehension test (i.e., a teaching expectancy effect; d = .55), regardless of the format of the lesson. In Experiment 2, participants studied while expecting to be tested or expecting to teach the material; some then actually did teach the material by providing a video-recorded lecture, whereas others received additional study time. Results indicated that those who actually taught the material outperformed those who did not teach on a delayed comprehension test (i.e., a teaching effect; d = .56), though this effect was strongest for those who also prepared to teach. Overall, these findings are consistent with the idea that preparing to teach results in short-term learning gains, whereas the act of teaching (i.e., by explaining the material to others) coupled with preparing to teach is important for long-term learning.  相似文献   

8.
Abstract

Mindfulness meditation involves focusing one's attention on the present moment in a non-judgmental way. Several recently published investigations have demonstrated that a brief session of mindfulness meditation, practiced before a higher-education course lecture, can improve performance on a quiz over lecture content given immediately following the lecture. It is less clear how mindfulness meditation, practiced before multiple course lectures, impacts performance on quizzes over time as well as on a cumulative exam over all lecture contents. The present experiment compared a mindfulness meditation group to an active control group; each practiced 6 min of mindfulness or relaxation prior to seven course lectures. Following each lecture, a quiz was given over lecture contents to measure short-term academic achievement. A cumulative exam was later given over all lecture content to measure long-term academic achievement. In contrast to prior published investigations, there were no effects of mindfulness meditation on academic achievement. Given these promising yet inconsistent effects, future work should explore the moderators (i.e., individual differences; duration, frequency, and style of meditation practice) of mindfulness meditation's salutary benefits.  相似文献   

9.

The goal of this study was to investigate the timing of online homework completion and its effects on student performance. Data was collected from two large, first-semester general chemistry sections at a southwestern university. Specifically, this study aims to explore the link between when students complete their homework relative to the date the material was covered in lecture and student performance in that class. Topics covered in the study included VSEPR, Lewis structures, and molecular geometry. Performance was measured by different variables, namely in-class clicker scores (short-term) and exam grade (long-term). Students were divided into three groups: students who completed the relevant homework within 2 days after the lecture (before the next lecture), those who completed the homework 2 to 4 days after the lecture, and students who completed the homework more than 4 days after the material was covered in lecture. The study also took into consideration student reasoning abilities, as measured by the Test of Logical Thinking (TOLT), with a focus on at-risk students (low TOLT students). Results showed promising findings for low TOLT students. Instructors can employ results from this study to help their students better utilize the online homework resources.

  相似文献   

10.
In order to determine primary health care providers' (PCPs) knowledge gaps on Parkinson's disease, data were collected before and after a one-hour continuing medical education (CME) lecture on early Parkinson's disease recognition and treatment from a sample of 104 PCPs participating at an annual meeting. The main outcome measure was the proportion of questions answered correctly by each PCP before the lecture. We measured the change in proportion of correct answers before and after the lecture (delta). Ninety-nine percent of the PCPs who attended the lecture returned the questionnaire. The level of knowledge on Parkinson's disease before the lecture was relatively low, particularly in management (61.4%) and diagnosis (34.4%). PCPs' perceived knowledge was not associated with the number of correct responses on management at baseline. Test scores significantly improved after the CME lecture. Our results show that PCPs' baseline knowledge of diagnosis and management of Parkinson's disease and self-perceived knowledge on this topic are relatively limited. Appropriately, United States reaccreditation programs do not only rely on self-perception. Longitudinal studies are needed to determine the impact of CME in knowledge retention and patient care in Parkinson's disease.  相似文献   

11.
In our Fundamentals of Genetics lab, students perform a wide variety of labs to reinforce and extend the topics covered in lecture. I developed an active-learning lab to augment the lecture topic of mutagenesis. In this lab exercise, students determine if a compound they bring from home is a mutagen. Students are required to read extensive background material, perform research to find a potential mutagen to test, develop a hypothesis, and bring to the lab their own suspected mutagen. This lab uses a specially developed strain of Saccharomyces cerevisiae, D7, to determine if a compound is a mutagen. Mutagenesis of the D7 genome can lead to a scorable alteration in the phenotypes of this strain. Students outline and carry out a protocol for treatment of the yeast tester strain, utilizing the concept of dose/response and positive and negative controls. Students report on their results using a PowerPoint presentation to simulate giving a scientific presentation. The students' self-assessment of their knowledge indicated that, in all cases, the students felt that they knew more about the assay, mutagenesis, and the relationship between genotype and phenotype (P < 0.05) after completing the exercise.  相似文献   

12.
ABSTRACT

Medical student use of lecture video (live-streaming and/or recorded) at a regional medical school campus that utilized distance educational technology to deliver first-year pre-clinical lecture content, was examined. Additionally, medical student video lecture use was compared to student performance on summative exams and final course grades. All learners achieved desired scientific competencies across all courses irrespective of their use of live-streamed or recorded video formats. Throughout the course of the year, medical student video use partitioned into one of two groups: students that only watched lecture in live-streaming format, and those that watched lecture only in recorded format. Interestingly, those medical students that predominantly preferred view lectures using the live-streaming format tended to achieve better summative test scores and final course grades compared to their peers that primarily utilized recorded video to obtain lecture content. Retrospectively, dimensions of personality scores were compared between the two groups (live-streaming viewers versus recorded viewers), and, of the five dimensions of personality, only the domain of conscientiousness differed between the two groups. This study suggests that, while medical students reached academic milestones utilizing either recorded or live-streamed video for obtaining lecture content during their first-year pre-clinical courses, there may be factors of learner personality influencing video use preference which in turn enhances student performance on summative exams and final course grades. These findings may have implications in curriculum design for other distance educational formats emphasizing classical scientific competencies in post-undergraduate study that rely on video delivery of lecture content.  相似文献   

13.
What can be done to promote student–instructor interaction in a large lecture class? One approach is to use a personal response system (or “clickers”) in which students press a button on a hand-held remote control device corresponding to their answer to a multiple choice question projected on a screen, then see the class distribution of answers on a screen, and discuss the thinking that leads to the correct answer. Students scored significantly higher on the course exams in a college-level educational psychology class when they used clickers to answer 2 to 4 questions per lecture (clicker group), as compared to an identical class with in-class questions presented without clickers (no-clicker group, d = 0.38) or with no in-class questions (control group, d = 0.40). The clicker treatment produced a gain of approximately 1/3 of a grade point over the no-clicker and control groups, which did not differ significantly from each other. Results are consistent with the generative theory of learning, which predicts students in the clicker group are more cognitively engaged during learning.  相似文献   

14.
Adult learning rests on the foundation of learner experience and involvement in the teaching and learning process. The methods employed in facilitating adult learning have to a large extent sought to place the learner at the centre of the entire teaching and learning encounter. The lecture method is one of the many methods used to facilitate learning in many educational programmes. This article reports on a study that posed the question; How effective is the lecture method in facilitating learning in non-formal adult education programmes? The case study design was used for the study. The National Functional Literacy Programme of Ghana was purposively selected for this investigation. Two classes in the programme comprising 10 adult learners and one facilitator each were purposively selected as sample for the study. It was found that the lecture method was ineffective in promoting learning in non-formal adult education programmes in Ghana since it failed to stimulate the comprehension of subject-matter and learner involvement in class activities.  相似文献   

15.
Although online education is popularized, it is in a developing stage that continues to struggle with communicating and engaging with students. The question remains on how students can be better engaged in online educational materials that are presented in asynchronous media, especially in lecture videos. Thus, using engagement theory, the present study explored how online lecture videos can be improved by incorporating entertainment education. Using a public lecture video found on YouTube, an online survey (N = 133) was conducted to identify digital storytelling techniques and their effects. Results revealed that these techniques that are often utilized in entertainment became meaningful components to increase student engagement and learning outcomes. However, they can also negatively affect instructor credibility, which could suggest the need to increase instructors’ skills. The implications for the development of lecture videos using entertainment and its potential to positively impact online education are discussed.  相似文献   

16.
New instructional technologies have been increasingly incorporated into the medical school learning environment, including lecture video recordings as a substitute for live lecture attendance. The literature presents varying conclusions regarding how this alternative experience impacts students' academic success. Previously, a multi‐year study of the first‐year medical histology component at the University of Michigan found that live lecture attendance was positively correlated with learning success, while lecture video use was negatively correlated. Here, three cohorts of first‐year medical students (N = 439 respondents, 86.6% response rate) were surveyed in greater detail regarding lecture attendance and video usage, focusing on study behaviors that may influence histology learning outcomes. Students who reported always attending lectures or viewing lecture videos had higher average histology scores than students who employed an inconsistent strategy (i.e., mixing live attendance and video lectures). Several behaviors were negatively associated with histology performance. Students who engaged in “non‐lecture activities” (e.g., social media use), students who reported being interrupted while watching the lecture video, or feeling sleepy/losing focus had lower scores than their counterparts not engaging in these behaviors. This study suggests that interruptions and distractions during medical learning activities—whether live or recorded—can have an important impact on learning outcomes. Anat Sci Educ 11: 366–376. © 2017 American Association of Anatomists.  相似文献   

17.
The intrusion of internet-enabled electronic devices (laptop, tablet, and cell phone) has transformed the modern college lecture into a divided attention task. This study measured the effect of using an electronic device for a non-academic purpose during class on subsequent exam performance. In a two-section college course, electronic devices were permitted in half the lectures, so the effect of the devices was assessed in a within-student, within-item counterbalanced experimental design. Dividing attention between an electronic device and the classroom lecture did not reduce comprehension of the lecture, as measured by within-class quiz questions. Instead, divided attention reduced long-term retention of the classroom lecture, which impaired subsequent unit exam and final exam performance. Students self-reported whether they had used an electronic device in each class. Exam performance was significantly worse than the no-device control condition both for students who did and did not use electronic devices during that class.  相似文献   

18.
《学校用计算机》2013,30(3-4):77-86
SUMMARY

The current study chronicles what one professor learned from teaching a distance education course with and without the aid of PowerPoint multimedia presentation software. It compares student ratings of three lectures from the same classes by the same professor; the first, a traditional lecture without any audiovisual aids; the second, a lecture supplemented by PowerPoint notes outlining the lecture; and finally, a multimedia lecture utilizing PowerPoint notes with pictures, music and animations. Students reacted no differently to any of the presentations when delivered by an experienced teacher. The students did, however, prefer PowerPoint multimedia to PowerPoint outline presentations. Suggestions for the optimal uses of presentation software are provided.  相似文献   

19.
Large cohorts (>200 students) are an ever-increasing presence in the UK higher education (HE) sector. Providing excellent teaching and learning to these large classes is an ongoing challenge for teaching faculty, a challenge intensified when the cohort comprises 85% non-native English speakers. This paper presents the findings of a project to supplement face-to-face lectures on a large campus-based taught MSc programme with a set of rich-media materials. These resources consisted of audio podcasts, audio-narrated slides, short video segments and full-video lecture capture. The aim of the study was to examine student usage of, and preference for, these different rich-media materials. Key findings are that students valued most highly the full-video lecture capture followed by the audio-narrated slides, using the materials primarily to consolidate their understanding and as revision aids. Students also emphasised the central importance of the face-to-face lecture – viewing the rich-media materials as complementary to, rather than as a replacement for the traditional lecture. Nor did the majority of students see the provision of videoed lectures as a reason for non-attendance at lectures. The findings of this study provide confirmatory evidence of the ongoing importance of the traditional lecture in large cohort HE teaching together with an acknowledgement of the benefits that rich-media materials can bring to the student learning experience.  相似文献   

20.
Learning bone anatomy of the skull is a complex topic involving three-dimensional information. The impact of the use of human dry skulls and cone beam computed tomography (CBCT) imaging was investigated in the teaching of undergraduate dental students. Sixty-four first-year students in the University of Hong Kong were randomly divided into eight groups. Four teaching methods were tested: (1) CBCT followed by standard lecture, (2) CBCT followed by lecture with skulls, (3) standard lecture followed by CBCT, and (4) lecture with skulls followed by CBCT. After each, students were given a multiple-choice questionnaire to assess their objective learning outcome (20 questions) and a questionnaire for their subjective satisfaction (10 statements). Surveys were assessed with Cronbach's alpha, Kendall's tau-b, and principal components analysis. Data were analyzed with Student's t-test and a one-way ANOVA (significance α = 0.05). Standard lecture followed by CBCT showed the highest learning outcome score (81.6% ± 14.1%), but no significant difference was present among four teaching methods. Cone beam computed tomography followed by lecture with skulls scored the highest overall subjective satisfaction (4.9 ± 0.8 out of 6), but no significant difference was present among teaching methods. Nevertheless, students' perception of learning was positively influenced by the use of skulls (P = 0.018). The timing of administration of the CBCT did not affect students' subjective satisfaction or objective learning outcome. Students perceived to learn more by using skulls, but their objective learning outcomes were not significantly affected. A discrepancy seems to exist between students' perception of learning and their effective performance.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号