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 31 毫秒
1.
ABSTRACT

Background and Context: Computer Science attrition rates (in the western world) are very concerning, with a large number of students failing to progress each year. It is well acknowledged that a significant factor of this attrition, is the students’ difficulty to master the introductory programming module, often referred to as CS1.

Objective: The objective of this article is to describe the evolution of a prediction model named PreSS (Predict Student Success) over a 13-year period (2005–2018).

Method: This article ties together, the PreSS prediction model; pilot studies; a longitudinal, multi-institutional re-validation and replication study; improvements to the model since its inception; and interventions to reduce attrition rates.

Findings: The outcome of this body of work is an end-to-end real-time web-based tool (PreSS#), which can predict student success early in an introductory programming module (CS1), with an accuracy of 71%. This tool is enhanced with interventions that were developed in conjunction with PreSS#, which improved student performance in CS1.

Implications: This work contributes significantly to the computer science education (CSEd) community and the ITiCSE 2015 working group’s call (in particular the second grand challenge), by re-validating and developing further the original PreSS model, 13 years after it was developed, on a modern, disparate, multi-institutional data set.  相似文献   

2.
Background and purpose:

The purpose of this study was to investigate the comparative effects of a prediction/discussion-based learning cycle (HPD-LC), conceptual change text (CCT) and traditional instruction on 10th grade students’ understanding of genetics concepts.

Sample:

Participants were 112 10th basic grade male students in three classes of the same school located in an urban area. The three classes taught by the same biology teacher were randomly assigned as a prediction/discussion-based learning cycle class (n?=?39), conceptual change text class (n?=?37) and traditional class (n?=?36).

Design and method:

A quasi-experimental research design of pre-test–post-test non-equivalent control group was adopted. Participants completed the Genetics Concept Test as pre-test–post-test, to examine the effects of instructional strategies on their genetics understanding. Pre-test scores and Test of Logical Thinking scores were used as covariates.

Results:

The analysis of covariance showed a statistically significant difference between the experimental and control groups in the favor of experimental groups after treatment. However, no statistically significant difference between the experimental groups (HPD-LC versus CCT instruction) was found.

Conclusions:

Overall, the findings of this study support the use of the prediction/discussion-based learning cycle and conceptual change text in both research and teaching. The findings may be useful for improving classroom practices in teaching science concepts and for the development of suitable materials promoting students’ understanding of science.  相似文献   

3.
Abstract

The significant interplay between self-efficacy, autonomy support and approaches to learning in adolescent students is widely recognized. However, less is known about whether substantial differences exist between early and middle adolescent students from schools with different environments. To close this research gap, this study used latent mean comparison and multigroup structural equation modeling with questionnaire data from a sample of German adolescent students (N?=?1153; MAgeT1?=?13.97, SD = 1.37; MAgeT2?=?14.27, SD = 1.25) in two waves. Multigroup structural equation modeling reveals that autonomy functions as a mediator in the association between self-efficacy and approaches to learning only for students from schools with a student-centered learning environment based on competence-matrices in contrast to a teacher-directed learning environment, particularly for early adolescent students. More specifically, adolescents’ approaches to learning can be enhanced through autonomy-supportive learning independently of their self-efficacy.  相似文献   

4.
ABSTRACT

Background and Context: In spite of the decades spent developing software visualization (SV), doubts still remain regarding their effectiveness. Furthermore, student engagement plays an important role in improving SV effectiveness as it is correlated with many positive academic outcomes. It has been shown that the existing SV has failed to engage students effectively.

Objective: Therefore, there is a need to understand the theories behind SV design from the engagement perspective to produce a roadmap for future tool construction. The aim of this study was to identify the theories have been used in literature to explain or construct student engage- ment with SV in computer science courses for novices.

Method: We performed a systematic literature review that identified a total of 58 articles published between 2011 and 2017, which were then selected for the study. However, among them, only 18 articles had discussed their theoretical framework.

Findings: The results of this study show a richness in the theoretical framework obtained from different disciplines, however, constructivism is still dominant in the computing education research (CER) domain. It is evidently clear from the findings that the theories generated from the CER domain are needed to enhance the effectiveness of SV.

Implications: As a result of this review, we suggest several design principles and engagement attributes to be considered while creating an engaging SV.  相似文献   

5.
  相似文献   

6.
This paper is the Discussion Documentfor a forthcoming ICMI Study on Applications and Modelling in MathematicsEducation. As will be well-known, fromtime to time ICMI (the InternationalCommission on Mathematical Instruction)mounts specific studies in order toinvestigate, both in depth and in detail,particular fields of interest inmathematics education. The purpose of thisDiscussion Document is to raise someimportant issues related to the theory andpractice of teaching and learningmathematical modelling and applications,and in particular to stimulate reactionsand contributions to these issues and tothe topic of applications and modelling asa whole (see Section 4). Based onthese reactions and contributions, alimited number (approximately 75) ofparticipants will be invited to aconference (the Study Conference)which is to take place in February 2004 inDortmund (Germany). Finally, using thecontributions to this conference, a bookwill be produced (the Study Volume)whose content will reflect thestate-of-the-art in the topic ofapplications and modelling in mathematicseducation and suggest directions for futuredevelopments in research and practice.The authors of this Discussion Document are themembers of the International ProgrammeCommittee for this ICMI Study. Thecommittee consists of 14 people from 12countries, listed at the end of Section4. The structure of the Document isas follows. In Section 1, we identifysome reasons why it seems appropriate tohold a study on applications and modelling.Section 2 sets a conceptual frameworkfor the theme of this Study, and Section3 contains a selection of importantissues, challenges and questions related tothis theme. In Section 4 we describepossible modes and ways of reacting to theDiscussion Document, and in the finalSection 5 we provide a shortbibliography relevant to the theme of thisStudy. This revised version was published online in July 2006 with corrections to the Cover Date.  相似文献   

7.
Reform recommendations around the world call for an understanding about the nature of science and the work of scientists. However, related research findings provide evidence that students hold stereotypical views of scientists and the nature of their work.

Purpose

The aim of this case study was to examine the impact of an intervention on 15 elementary school students’ views of scientists.

Sample

An urban, fifth-grade, European elementary school classroom defined the context of this study.

Design and method

The intervention was an 11-week-long investigation of a local problem concerning water quality. In carrying out this investigation the students collaborated with a young metrology scientist to collect and analyse authentic data that would help them to construct a claim about the quality of the water. The students’ initial views of scientists were investigated through a drawing activity, classroom discussions and interviews.

Results

Analysis of these data indicated that all students but one girl held very stereotypical views on scientists and the nature of their work. Analysis of interviews with each student and classroom discussions after the intervention illustrated that they reconstructed their stereotypical views of scientists and the nature of their work owing to their personal engagement in the investigation and their collaboration with the scientist.

Conclusions

The findings of this study suggest that more in-depth study into project-based approaches, out-of-school learning and school–scientist partnerships is warranted, for the purpose of determining appropriate pedagogies that support students in developing up-to-date understanding about scientists and the nature of their work.  相似文献   

8.
We derive necessary and sufficient conditions for the existence and an expression of the （anti）reflexive solution with respect to the nontrivial generalized reflection matrix P to the system of complex matrix equations AX = B and XC = D. The explicit solutions of the approximation problem min x∈Ф ｜｜X - E｜｜F was given, where E is a given complex matrix and Ф is the set of all reflexive （or antireflexive） solutions of the system mentioned above, and ｜｜·｜｜ is the Frobenius norm. Furthermore, it was pointed that some results in a recent paper are special cases of this paper.  相似文献   

9.
Background: Science educators have sought to structure collaborative inquiry learning through the assignment of static group roles. This structural approach to student grouping oversimplifies the complexities of peer collaboration and overlooks the highly dynamic nature of group activity.

Purpose: This study addresses this issue of oversimplification of group dynamics by examining the social leadership structures that emerge in small student groups during science inquiry.

Sample: Two small student groups investigating the burning of a candle under a jar participated in this study.

Design and method: We used a mixed-method research approach that combined computational discourse analysis (computational quantification of social aspects of small group discussions) with microethnography (qualitative, in-depth examination of group discussions).

Results: While in one group social leadership was decentralized (i.e., students shared control over topics and tasks), the second group was dominated by a male student (centralized social leadership). Further, decentralized social leadership was found to be paralleled by higher levels of student cognitive engagement.

Conclusions: It is argued that computational discourse analysis can provide science educators with a powerful means of developing pedagogical models of collaborative science learning that take into account the emergent nature of group structures and highly fluid nature of student collaboration.  相似文献   

10.
ABSTRACT

Background: The importance of digital technologies for enhancing learning in formal education settings has been widely acknowledged. In the light of this expectation, it is important to investigate the effects of these technologies on students’ learning and development.

Purpose: This study explores longitudinal empirical research on digital learning in the context of primary and secondary education. By focusing on a small selection of the peer-reviewed literature, the aim is to examine the kinds of longitudinal study published on this topic during the period 2012–2017 and, thorough categorisation, to bring together insights about the reported influences of digital technology use on students’ learning.

Design and methods: The databases searched for the purposes of this review were Scopus and Web of Science. Of 1,989 articles, 13 were finally included in the review. Using qualitative content analysis, these were analysed, coded and categorised.

Results: The reviewed studies were found to have approached digital learning in different ways: they varied, for example, in terms of research methods and design and the digital technologies used. The studies addressed different aspects of learning, which we assigned to six categories: affection, attitude, and motivation; subject-specific knowledge and skills; transversal skills; learning experience; elements of the learning environment; and identity. We identified both positive and negative influences of technology on learning.

Conclusions: This review offers a snapshot of the variety of research in this fast-moving area. The studies we explored were found to approach digital learning from several different perspectives, and no straightforward conclusions can be drawn about the influences of digital technology use on students’ learning. We conclude that further longitudinal studies of digital learning are needed, and this study assists by highlighting gaps in the existing literature.  相似文献   

11.
  相似文献   

12.
  相似文献   

13.
ABSTRACT

Background and Context: Current introductory instruction fails to identify, structure, and sequence the many skills involved in programming.

Objective: We proposed a theory which identifies four distinct skills that novices learn incrementally. These skills are tracing, writing syntax, comprehending templates (reusable abstractions of programming knowledge), and writing code with templates. We theorized that explicit instruction of these skills decreases cognitive demand.

Method: We conducted an exploratory mixed-methods study and compared students’ exercise completion rates, error rates, ability to explain code, and engagement when learning to program. We compared material that reflects this theory to more traditional material that does not distinguish between skills.

Findings: Teaching skills incrementally resulted in improved completion rate on practice exercises, and decreased error rate and improved understanding of the post-test.

Implications: By structuring programming skills such that they can be taught explicitly and incrementally, we can inform instructional design and improve future research on understanding how novice programmers develop understanding.  相似文献   

14.
BackgroundAcquiring more complex coping strategies despite a history of childhood adversity may transpire in settings outside the family home.ObjectivesThe objectives of this cross-sectional study included investigating coping strategies under stressful situations in a non-clinical sample of active athletes and performing artists. Participants and Setting: In this community and university sample (n = 577), 40.4% had no ACEs, 43.4% had 1–3 ACEs, and 16.3% had ≥4 ACEs.MethodsA series of multivariate analyses (gender and age included as covariates) were conducted to examine differences between the three ACE groups.ResultsResults indicated no between-subject differences between the three ACE groups for flow-like experiences during preferred activities, although gender differences were significant (p < .001). Individuals in the ≥4 ACEs group endorsed more intense creative experiences compared to the no-ACE and 1–3 ACEs groups (p = .006, η2 = .048); however, in the third MANCOVA they had heightened anxiety, internalized shame, dissociative processing, emotion-oriented coping, and cumulative trauma (p < .001, η2 = .132). There were no group differences for task-oriented and avoidant-oriented coping, a finding that highlights the ability of active individuals to engage in effective coping strategies under stressful situations.ConclusionRegardless of past childhood adversity history, this non-clinical high achieving sample was able to engage in a range of coping strategies under stress.  相似文献   

15.
Abstract

The meanings invested by people in any given environment—natural or built, large scale or intimate—play a crucial role in determining attitudes toward the place and eventual commitment and goals of action. The “location task” described in this article enables its users to explore their “desired” spatial organization of a place: a room, a school, a neighborhood, a park. Using their individual, social, and organizational goals and values, they attempt to develop in the spatial configuration of the place a hierarchically embedded system.  相似文献   

16.
Background: Helping upper elementary and lower secondary school students develop an awareness of various aspects of the nature of science (NOS) and nature of technology (NOT) is a widely recognized goal of science teaching. In this study, we focus on the connections between science and technology (S&T).

Purpose: We report on the design, development, enactment and evaluation of a teaching-learning sequence (TLS) that combines hands-on activities in geometrical optics with explicit epistemological discourse for reflection purposes. The design of the TLS draws on perspectives from the inquiry-oriented and design-based teaching and learning frameworks.

Sample: The enactment of the TLS involved a class of 17 sixth-grade students, aged 10–11 years old, of a public elementary school in Cyprus.

Design and methods: We present findings from written responses to both closed and open-ended tasks as well as follow-up semi-structured interviews that probed students’ understanding of the difference between the main goals of S&T.

Results: The results illustrate elementary students’ readiness to engage with epistemic issues and demonstrate the potential of prompting young learners’ ability to develop informed awareness of the NOS and NOT. The results also provided feedback for the revision of the TLS so as to further enhance its effectiveness in achieving the stated learning objectives.

Conclusion: We discuss the implications of our findings for the teaching of the NOS and NOT and for the design and validation of TLSs. It is possible for students of this age group to develop an awareness of issues related to the NOS and NOT. TLSs can be improved through design-based research approaches to serve as productive tools to this end.  相似文献   

17.
This paper reports on part of an ongoing research project in England concerning the Nature of Science (NOS). The particular focus is on the initial thinking of the graduate scientists starting a one-year, Postgraduate Certificate of Education (PGCE) course and the way the course approaches adopted influence their views and understanding of NOS and their teaching. The research is set against a wealth of literature indicating that teachers find it difficult to teach curricula that emphasise NOS. Thus a key impetus for research in this area has been to look for ways that beginning teachers might be better prepared to face such challenges.

Sample

The paper draws on data from three cohorts of secondary PGCE students in a university–schools partnership, involving a total of 169 students.

Design and method

The research lies within a design research tradition. It has used mixed methods, involving written tasks, interviews and focus groups, with an iterative approach where the outcomes from one cohort have been used to inform course developments in successive years.

Results

The results from these cohorts suggest that, while the students starting the course have a less restricted view of NOS than indicated by some other studies, in most cases there is a lack of breadth and depth to their understanding. There is some evidence that the use of specific tasks focusing on NOS in university-based sessions may be helping to develop and deepen understanding. However, the impact of current approaches remains fairly limited and attempts to develop teaching practices often face considerable barriers in the school-based practicum.

Conclusions

Graduate science students’ understanding of NOS as they embark on the PGCE is not highly developed. Hence, the emphasis on aspects of NOS in the school curriculum presents a considerable challenge. This study suggests that there is a need to both further develop an explicit focus on NOS in university-based sessions and to develop closer relationships between schools and university faculty in seeking to support developments in classroom practice in this difficult area.  相似文献   

18.
Background: Creativity is often cited as one of the capacities that needs to be actively encouraged in all aspects of schooling. However, what creativity is and how it may be promoted through formal teaching and learning approaches remain contested. There are also differences between educators in terms of how they understand, discuss and conceptualise this complex concept.

Purpose: This paper focuses on the difficulties associated with talking about creativity in education. It considers the ways in which schoolteachers who are involved in the area of arts education understand, describe and discuss the concept of creativity and how it interacts with their classroom practice.

Sample: Twenty-three educators who taught Arts (either as generalist primary classroom teachers or as specialist teachers), and the leadership team from a Kindergarten to Year 9 (pupil ages 5–15) school in the suburbs of a city in the Australian state of Victoria participated in the project.

Design and methods: In this phenomenological study, data were gathered from participants through questionnaires, discussion groups, email prompts and reflective journals. The material was analysed qualitatively.

Findings: By examining the teachers’ dialogic and discursive responses about creativity, it was possible to capture some broad ways in which the participants spoke about creativity. Data were analysed thematically and grouped into categories that represented the connected ‘creative orientations’: thinking orientations, action orientations, emotion orientations and skill/outcome orientations.

Conclusion: There is a need for educators in and across a range of discipline areas to share, map and think about creativity. The approach adopted in this exploratory study offers a way that could be used to focus discussions and help facilitate educators’ talk about creativity.  相似文献   

19.
Background: In research on design-based learning (DBL), inadequate attention is paid to the role the teacher plays in supervising students in gathering and applying knowledge to design artifacts, systems, and innovative solutions in higher education.

Purpose: In this study, we examine whether teacher actions we previously identified in the DBL literature as important in facilitating learning processes and student supervision are present in current DBL engineering practices.

Sample: The sample (N=16) consisted of teachers and supervisors in two engineering study programs at a university of technology: mechanical and electrical engineering. We selected randomly teachers from freshman and second-year bachelor DBL projects responsible for student supervision and assessment.

Design and method: Interviews with teachers, and interviews and observations of supervisors were used to examine how supervision and facilitation actions are applied according to the DBL framework.

Results: Major findings indicate that formulating questions is the most common practice seen in facilitating learning in open-ended engineering design environments. Furthermore, other DBL actions we expected to see based upon the literature were seldom observed in the coaching practices within these two programs.

Conclusions: Professionalization of teachers in supervising students need to include methods to scaffold learning by supporting students in reflecting and in providing formative feedback.  相似文献   

20.
Background: Knowledge construction and technology have been identified as critical for an understanding of the future of teacher education. Knowledge is discovered, applied and created collaboratively from authentic starting points. Today’s new mobile and blended learning environments create increased opportunities for such processes, including learner-centred approaches, authenticity and dialogical knowledge construction. However, teaching still requires appropriate learning design and structuring. The presented study explored, and was designed and implemented, using the ‘Dialogical Authentic Netlearning Activity’ (DIANA) pedagogical model, which is seen as one of the learning designing models for existing digital, open and mobile learning environments.

Purpose: The purpose of this study was to identify the challenges and opportunities inherent in the adoption of the DIANA model and to examine student-teachers’ reflections concerning authentic and dialogical knowledge construction. The focus is on the learning process.

Sample: Participants were 63 student-teachers who were following the study module ‘Networks in Vocational Education’ at the School of Professional Teacher Education, in Hämeenlinna, Finland.

Design and methods: This qualitative study uses a deductive content analysis to discern relationships between the data and the existing theory. The data for this study were drawn from an online questionnaire and participants’ self-reflective accounts.

Findings: The results indicate that achieving deep-oriented learning through dialogical actions is the most challenging part of using the DIANA model. Some of the students had difficulty understanding the concept of ‘authenticity’.

Conclusions: The findings of this study suggest enhancing learner-centred scaffolding and guidance, particularly at the outset of the learning process. In addition, methods that develop dialogical skills and competences ought to be integrated into teacher education as extensively as possible, in order to make collaborative work and problem-solving genuinely dialogical and equal.  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