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An auto-scoring mechanism 普通类
The rapid development of computer and network technologies has attracted researchers to investigate strategies for and the effects of applying information technologies in learning activities; simultaneously, learning environments have been developed to record the learning portfolios of students seeking web information for problem-solving. Although previous research has demonstrated the benefits of applying information technologies to learning activities, the difficulties in doing so have also been revealed. One of the major difficulties is the lack of a mechanism to assist teachers in evaluating the problem-solving ability of the students, such that constructive suggestions can be given to the students, and tutoring strategies can be improved accordingly. To cope with this problem, in this paper, an auto-scoring mechanism is developed to analyze the various information searching abilities of individual students. Indicators of information searching ability (ISA) are proposed based on the famous Big6 model and are adopted in our auto-scoring mechanism. Moreover, two experiments have been conducted to demonstrate the effectiveness of this innovative approach. The experimental results show high correlation between the scores of the auto-scoring mechanism and the manual scoring. Moreover, the feedbacks from 158 teachers also show that the innovative approach is highly accepted by the teachers.
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The measures weighted stratum 普通类
This study focuses on carrying out weighted digraph-based mathematical construction of hypermedia and user navigation on hypermedia and making a presentation of “weighted” forms of known stratum and compactness. In the instructional Web design researches, the structural analysis of navigation on the hypermedia is important in modeling the behaviors that the learners perform while using this kind of media. Therefore, new conceptions of the presented usage of new measures towards this goal are also discussed within the scope of our study.
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Using Co-Lab to build System Dynamics 普通类
Modeling offers a promising form of constructivist learning for students. By making and executing models of dynamic systems in a computer environment, students are stimulated to learn about the specific domain that is modeled as well as about the process of modeling in general. However, learning by modeling also leads to characteristic student mistakes, based on a combination of faulty domain knowledge and insufficient modeling skills. In this article, we describe a method of generating advice to students during their modeling process. The on-line advice system was informed by our observations of a teacher who gave advice via a textual communication tool to students building models with a System Dynamics model editor. The first version of the on-line advice system was evaluated in two ways: first, three teachers evaluated the advice the system generated for students’ final solutions; second, we analyzed the advice the system provided as it was used by a sample of students who were building a physics model. These evaluations showed that the overall approach, including matching a student solution to a family of reference solutions together with the other mechanisms of the advice system, is valid. However, they also highlighted the difficulty of building ‘intelligent’ support to help students to improve their models and gain modeling expertise. The article concludes with a discussion of our current efforts to improve the advice system based on the lessons learnt, which suggest extension of the range of solution representations and of the operations of the advice method.
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Instructional technologies in social science 普通类
This study describes the results of a survey and a description of instructional technologies in place in the social sciences in South African Universities. Lecturers in the social sciences reported a well-established practice of information and communication technologies (ICTs) use for general purposes (although frequent use tended to be for email and searching the Internet). They had a high self-efficacy in terms of using ICTs both generally and for teaching and learning, and a high enthusiasm for the use of ICTs for teaching and learning. Half the lecturers had started using ICTs recently with the introduction of learning management systems (LMSs) whereas the other half had established practices that preceded the mainstreaming of LMSs across universities. Only about a quarter of the respondents felt able to develop and update ICTs themselves which indicates that support is a necessary part of teaching with technology. In terms of different types of use the focus was on putting content on the web and course administration. Use of ICTs for teaching of skills (whether information literacy, problem solving or critical thinking) was infrequent. There were different types of ICT use across the different sub-disciplines. Lecturers reported factors which constrained their use of ICTs for teaching and learning, such as inadequate technology, pedagogical issues (e.g. plagiarism), and students opting out of lectures when materials were available online. It is argued that user studies in are relevant to the future delivery of educational material, in terms of removing barriers to use and targeting training and supportive activities.
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Workforce readiness 普通类
This study with data collected from a large sample of freshmen in 2001 and a random stratified sample of seniors in 2005 examined students perceived FITness (fluency with Information Technology). In the fall of 2001 freshmen at a medium sized research-one institution completed a survey and in spring 2005 a random sample of graduating seniors completed a similar survey. The surveys measured the student’s self-reported proficiency in basic information technology knowledge and skills such as word processing and presentation software as well as more complex applications such as digital audio. We found a significant increase in perception of skills in presentation software and browsers and although both groups reported low skill levels, a significant decrease in perception of skills in database, web animation, programming, desktop publishing, digital video, and video audio. Although one might assume an undergraduate would indicate an increase in information and communication technology skills, this study found that often student’s perceptions of ability decline. However this decrease may be due to their increased awareness of the skills needed in the workforce.
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The role of perceived user-interface design 普通类
While past studies on user-interface design focused on a particular system or application using the experimental approach, we propose a theoretical model to assess the impact of perceived user-interface design (PUID) on continued usage intention (CUI) of self-paced e-learning tools in general. We argue that the impact of PUID is mediated by two variables, namely perceived functionality (PF) and perceived system support (PSS), which influence perceived usefulness (PU) and perceived ease of use (PEOU), respectively. We empirically validated the model using data collected from a survey administered to university students in Hong Kong. We found that most hypotheses are valid and PUID is an important antecedent of CUI of a self-paced e-learning tool. We also showed that PU and user satisfaction (USat) are two essential predictors of CUI. However, the impact of PEOU on CUI is indirect via PU as a mediator. Our findings enrich the theory on the continued usage of technology, and provide e-learning developers with managerial insights on how to entice learners to continue using their e-learning tools.
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Changing middle-school students’ attitudes 普通类
Women’s under-representation in fields such as engineering may result in part from female students’ negative beliefs regarding these fields and their low self-efficacy for these fields. In this experiment, we investigated the use of animated interface agents as social models for changing male and female middle-school students’ attitudes toward engineering-related fields, their self-efficacy for these fields, and their math performance. Students interacted with either a female or a male computer-based agent or they did not interact with an agent. The female agent increased interest, utility beliefs, self-efficacy, and math performance compared to control and, for boys, decreased stereotyping. Mediational analyses indicated that the female agent facilitated interest and math performance by enhancing self-efficacy. The findings indicate that interface agents may be used effectively as social models for influencing attitudes and beliefs and supporting performance.
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A cyberphilosophical issue in education 普通类
Increased use of technology for instructional purposes has caused some debates about ethical and/or moral use of computers. All teachers, as practitioners of ICT in learning settings, must feel responsible for educating students on “what is right and what is wrong?” of computer use. This study aimed to determine prospective teachers’ unethical computer using behaviors at a faculty of education in Turkey. The results showed that the participating prospective teachers are sensitive to ethical computer use. However, the general mean of the surveys is above the average by a small degree that makes the participants’ judgments of ethical use inconsiderable. It can be concluded that they undermine ethical computer use. Science teachers and computer education teachers’ judgments were less ethical than those of classroom teachers and social sciences teachers. The results also revealed that female candidate teachers were more concerned about ethical issues and that prospective teachers who had up to five years of PC experience considered ethical computer use more than those with five years and beyond. After the survey analysis, the study was completed with qualitative data gathered from semi-structured interviews with nine students.
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‘Pretty Lights’ and Maths! 普通类
University classes in Mathematics are traditionally perceived to be uninspiring and devoid of active student–lecturer communication. Large undergraduate classes further compound the difficulty of engaging students and enabling viable student–lecturer feedback. At the Mathematics Education Centre, Loughborough University, some staff members have been using electronic voting systems (EVS) to enliven the classroom and enable large numbers of students to respond to questions in real time during class. In this paper, we present an evaluation case study, based on student perceptions, of the impact of EVS use on student learning and engagement. The results show that majority of students are hugely positive about the usefulness and overall advantageousness of EVS use in classes. Results also show that EVS use does increase the likelihood of students participating and engaging in class, as even students who do not view EVS as being particularly useful stated that they are more likely to participate in classes where EVS are used than otherwise. However, there seems to be no correlation between EVS use and improvement (or otherwise) in student grades.
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One year of ICTP diploma courses on-line 普通类
The 12-month pre-Ph.D. ICTP Diploma Courses in the fields of Condensed Matter Physics, High Energy Physics, Mathematics, Earth System Physics and Basics Physics have been recorded using the automated, low cost recording system called EyA developed in-house. We discuss the technical details on how these recordings were implemented, together with some web usage statistics and students feedback. As yet, no similar endeavor has been made to put on-line a complete high-level Diploma Programme, due to the high costs involved when using alternative recording solutions. These recordings are freely available on the website www.ictp.tv.