水泥砼路加铺沥青混凝土面层的探析

在旧水泥混凝土路面加铺沥青面层是目前比较普遍的城市道路改造方法,但由于其基层的特殊性,出现反射性裂缝在所难免。文章对基层的修复处理、加铺沥青面层施工的要点以及抑制和延缓反射性裂缝产生的若干方案进行了比较分析,以期对提高加铺工程质量、减少道路病害提供参考。     

A bridge over troubling waters: a snapshot of teacher graduates' perceptions of their ongoing professional learning needs

For graduating teachers, the bridging period between formal teacher preparation and joining the profession is a time of high anxiety and great excitement. While this transition influences efficacy, job satisfaction, career length and future teaching quality, it is widely recognised to be inconsistent, poorly planned and resourced and largely unsupported. In Australia, the transition to teaching remains largely a school-based affair. However, individual schools may not have the resources to support a comprehensive and cohesive transition program. This paper discusses a pilot university program of extended teacher preparation. It reports on the perceived professional learning needs of a group of graduates as they transition to teaching. The key findings indicate that these graduates are seeking ongoing support as they develop confidence in their canonical skills of teaching. The authors argue that university-based programs are one way of providing professional learning and support for beginning teachers.     

Teachers reflecting on their work: articulating what is said about what is done

Teachers' written reflections on their work, which report on a change in their practice, were the object of this research. Taking teachers' articulation of their plans and actions in teacher journals as our source, this study's aim is twofold: (1) to describe how teacher reflect in a self‐initiated and non‐framed way on their own practice, and (2) to review teacher self generated reflections in reference to models of reflection. In this way, we tried to disclose what precisely teachers write (said) when reflecting on their work (did) in order to appreciate their way of describing what matters in their work; and position this in reference to models that conceptualise (“talk”) on how to actualise (‘walk’) reflection. This ‘double’ articulation of reflection is gauged in two ways, i.e., on: a) completeness, that is, whether it includes relevant components of reflection (models) to be found in the literature, and on b) recursiveness, that is, whether the written account gives evidence of an integrated cyclical, i.e., recursive process of re‐view, which appraises and looks back on what has been accomplished.

The results show that teachers do not work along the lines identified in current reflection models (i.e. providing clear problem definition, searching for evidence, planning for change, and reviewing plans). Instead, many teachers use a narrative and valuing appraisal of their accomplishments; not so much cautiously reviewing their actions but prospectively commenting on plans and solutions for future action. The data lead us to be cautious about the prominence of reflection models as advocated in the literature to be applied to teachers' written accounts of their practice.     

The impact of collaborative video analysis by practitioners and researchers upon pedagogical thinking and practice: a follow‐up study

The ‘T‐MEDIA’ project analysed and documented how teachers exploit the use of projection technologies – data projectors and interactive whiteboards (IWBs) – to support learning in secondary‐school subject lessons. The research involved collaboration between university researchers and four pairs of UK teachers (of English, mathematics, science and history) in an intensive process of systematically analysing video recordings of classroom activity and other data in depth. Our goals were to assist teachers in articulating the pedagogical rationale underlying their practice, and uniquely, to engage them in theory building about strategic technology use. This paper reports on a follow‐up study carried out one year after the collaborative analyses in order to assess the subsequent impacts of the process of critical reflection. The eight teachers were questioned using a semi‐structured interview technique that allowed us to elicit structured and personalised accounts of impact on pedagogical thinking and practice and the supporting or constraining factors. The findings suggest that for at least some, the sociocultural theory introduced and reformulated during the analyses provided a powerful analytical lens upon emerging practices, including those not incorporating technology. All of the participants reported lasting effects upon their own thinking and, except where external constraints operated, on teaching practices. The approaches developed during T‐MEDIA had additionally been disseminated to and adapted by other subject colleagues. The study illustrates how collaborative analysis of lesson videos can be used to engage teachers in deep reflection, critique and debate. This approach supports the development of an analytical scrutiny of classroom teaching and offers a significant professional development opportunity. In particular, under conditions of sensitive support, teachers will readily accommodate theoretical constructs into specific areas of professional thinking and practice.     

Beyond the ‘good teacher’: guiding pre-service teacher reflections on culturally diverse students

This article explores how reflective practice may be facilitated among pre-service teachers preparing to teach in culturally diverse classrooms. The significance of the mentor teacher’s ability to reveal her/himself as a reflective practitioner in order to promote student reflection is well documented. The article specifically addresses one teacher educator’s approach to offering mentor support with a focus on reflective practices related to cultural diversity. She explores how her ethnographic doctoral study on the classroom participation of adult South Sudanese students in different Australian learning environments has informed her own practice as a teacher, and ways in which her teaching philosophy and values were influenced by the sustained reflection needed to complete the study. By making explicit an aspect of her reflective practice, she aims to add to the growing body of literature on how to engage pre-service teachers meaningfully in reflection on their own classroom practice, especially in relation to teaching to diversity.     

初中科学实施反思性教学的策略

反思是个体成熟的标志,教师的反思性教学有助于提升教学的有效性。在教学过程中,由于教师对反思性教学的认识存在片面性,实施的自主意识不足,操作缺乏有效策略,出现了为反思而反思的现象。教师惟有真正深刻理解反思性教学的真实内涵和重要意义,才能积极开展反思性教学,主动探索提高反思性教学能力的策略。     

Using pictorial mnemonics in the learning of tax: a cognitive load perspective

The scope and complexity of the Australian taxation system (as with other tax regimes) is daunting for many accounting students. This paper documents the implementation of new practices that were initiated in an effort to address some of the challenges faced by undergraduate students studying taxation. Based on the principles of cognitive load theory, summaries of the lecture material became the focus of tutorials. These summaries provided the impetus for teaching staff to experiment with illustrations as a strategic means of delivery. Drawing diagrams and presenting them in the form of pictorial mnemonics proved to be effective tools in helping students understand and synthesize basic taxation concepts, thereby promoting effective deep learning. Both formal and informal feedback was overwhelmingly positive and affirming of this innovative approach to the subject. A selection of the pictorial mnemonics we designed is provided.     

Adverse and adaptive childhood experiences are associated with parental reflective functioning in mothers with substance use disorder

Mothers with a substance use disorder (SUD) are at risk for maladaptive parenting practices, and have heightened likelihood of having experienced childhood adversity themselves. In addition, parental reflective functioning (PRF), a capacity underlying sensitive caregiving, is often low in mothers with SUD. This study examines the relationship between PRF and aversive (emotional, physical, sexual abuse and neglect) and adaptive (safety and competence) experiences, in different developmental phases (early childhood, latency, and adolescence) in mothers with a SUD. A sample of 43 mothers with small children were interviewed with the Parental Developmental Interview to assess PRF, and they completed the Traumatic Antecedents Questionnaire regarding aversive and adaptive experiences. In addition, we used the Hopkins Symptoms Checklist-10 to control for mental health status and a battery of neuropsychological tests to control for executive functions. Results indicated that adaptive experiences in early childhood were positively related to PRF, and that experience of emotional abuse was negatively related to PRF. When separating the group of mothers in two sub-groups based on PRF level, results showed that mothers with negative to low PRF had significantly more experiences of adversities in early childhood and latency, and significantly less adaptive experiences in early childhood, latency and adolescence, compared to mothers with moderate to high PRF. In addition, mothers with adequate to high PRF reported experiencing significantly more types of adaptive experiences, and significantly less adversities compared to mothers with negative to low PRF. Results are discussed in relation to developmental trauma, resilience, epistemic trust and mistrust.     

数学教学反思初探

数学教学反思是对数学教学的反思性活动,是数学教师继续教育、提高教师素质和能力以及更好地在教学实践中帮助学生获得知识的非常重要的手段和途径.本文主要论述了数学教学反思的涵义、作用和方法.