An investigation of Zimbabwe high school chemistry students' laboratory work–based images of the nature of science

This study investigates the proximal and distal images of the nature of science (NOS) that A‐level students develop from their participation in chemistry laboratory work. We also explored the nature of the interactions among the students' proximal and distal images of the NOS and students' participation in laboratory work. Students' views of the NOS and the nature of their chemistry laboratory work were elicited through students' responses to an open‐ended questionnaire and semistructured interviews. The results suggest that students build some understandings of the NOS from their participation in laboratory work. Students' proximal NOS understandings appear to build into and interact with their understandings of the nature and practice of professional science. This interaction appears to be mediated by the nature of instruction. It is posited that each student's conceptual ecological system is replete with interactions, which govern attenuation of proximal understandings into distal images. Methodologically, the study illustrates how students' laboratory work–based proximal and distal images of the NOS can be identified and extracted through analyzing and interpreting their responses to protocols. Implications for A‐level Chemistry instruction and curriculum development are raised. © 2006 Wiley Periodicals, Inc. J Res Sci Teach 43: 127–149, 2006     

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Cognitive constraints and the early learning goals in writing

This study examined the relative importance of a number of cognitive factors (i.e. working memory, vocabulary knowledge, general cognitive ability and reading skills) in accounting for differences in the rate of progress made by children in the development of emergent writing skills. Sixty-seven children were assessed on tasks measuring the visuospatial, phonological and central executive components of working memory. The children's written texts were analysed according to the assessment scale for writing from the Early Years Foundation Stage Profile. The results indicate that reading performance and visuospatial memory skills are crucial to determining whether or not children aged 4–5 years are able to meet the UK government's prescribed educational standards for writing. The importance of visual skills in the acquisition of orthographic knowledge and writing conventions gained through reading is discussed in relation to current instructional strategies within schools.     

Muscular activity characteristics associated with preparation for gait transition

PurposeThe purpose of this study was to investigate lower extremity neuromuscular activity patterns during gait transitions with continuously changing locomotion speeds.MethodsMuscular activities related to gait transitions (walk to run and run to walk) induced by changing treadmill speed were compared to muscular activities during walk and run at constant speeds. All transition and constant speed conditions were conducted in similar speed range. Surface electromyographic activities of gluteus maximus (GM), rectus femoris (RF), vastus lateralis (VL), biceps femoris long head (BFL), tibialis anterior (TA), gastrocnemius (GA), and soleus (SL) were collected and analyzed. The influences of speed and mode of locomotion were analyzed.ResultsWe have observed transition specific nonlinear muscular behavior in this study. For example, peak magnitudes of GM, RF, GA, and SL increased with speed quadratically as locomotion approached walk to run transition within the last five steps. Activity duration of GA decreased in a quadratic fashion with speed as approached run to walk transition within the last five steps. These nonlinear reactions to speed change were only observed in transition related conditions but not in the constant speed conditions.ConclusionThese results indicated that, in preparation for transition, neuromuscular modifications occur steps before gait transition due to changing speed. Gait transition is not a spontaneous event in response to any type of triggers.     

‘Knowledge Workers’ as the New Apprentices: The Influence of Organisational Autonomy, Goals and Values on the Nurturing of Expertise

This paper explores the concept of apprenticeship in the context of the professional formation of knowledge workers. It draws on evidence from research conducted in two knowledge intensive organizations: a research-intensive, elite university; and a ‘cutting edge’ software engineering company. In the former, we investigated the learning environments of contract researchers, whilst in the latter, we focused on the learning environments of software engineers. Both organisations have ‘global’ reach in that they operate within international marketplaces and see themselves as international players. The paper asks to what extent the important role of maturation with regard to the formation of expertise is being undermined by the pressurised nature of contemporary workplaces (in both the public and private sectors). It argues that conceiving the professional formation of knowledge workers as apprenticeship provides a way forward to improve the way employers construct and support that formation.     

Deviating from the Data: A Response to Bleakley and Bleakley

Interchange - Positive behaviour for learning (PBL) was introduced to the state education sector in Queensland in the early 2000s in an effort to move schools away from use of punitive disciplinary...     

A Cardiopulmonary Instructor's Perspective on a Standardized Patient Experience: Implications for Cardiopulmonary Physical Therapy Education

Purpose: Standardized patients (SP) in Doctor of Physical Therapy (DPT) curricula are increasingly used for students to practice developing clinical reasoning, communication, and professional skills in an authentic learning environment. The purposes of this article are to: (1) describe an instructional model that synthesized SPs, Internet-based communities of practice, and reflection to teach clinical reasoning in DPT students; and (2) a cardiovascular and pulmonary physical therapy (CPPT) instructor''s perspective on the educational process and student clinical skill development. Summary of Key Points: The model, employed in a course: “Integrative Physical Therapy Practice,” enabled the instructor to document student clinical performance and reasoning during an SP interaction. For students, clinical reasoning was illuminated through the model''s assessment process. Data collected through the assessment process provided important feedback to the instructor on classroom instructional effectiveness. Conclusions: Examination of student learning experiences enabled the instructor to consider: (1) key aspects of examination and management for persons with cardiovascular or pulmonary disorders, (2) methods for visualizing clinical reasoning, (3) the impact of teaching on student learning, and (4) strategies for teaching CPPT. More research is indicated to investigate pedagogy for the development of clinical reasoning in DPT students.Key Words: standardized patient, clinical reasoning, reflection, physical therapy education, cardiovascular, pulmonary     

The Religious Education Association in Our Global Reality

The article identifies international cases—from the United States, Europe, and the United Nations—of an emergent interface of religion, education, and security. This is manifest in the uses of religion in education to counter religious extremism, the notional “counter terrorist classroom.” To avoid an over-association of extremism with religion, the article provides some historical reminders that the post-Enlightenment centuries were marked by political extremism, particularly in the phenomenon that came to be known as totalitarianism. In freedom-espousing doctrines on all sides—Communist, Fascist, and Nazi as well as democratic—education here too was an invariant adjunct of political and security processes. All regarded religion too as contributory or contrary to such freedom. What is new now is the global use of religion in education for political and of late security purpose. Using Isaiah Berlin's (2002) “two concepts of liberty,” I argue that evidence of—often subtle, often explicit—security uses of religion in education mark in new ways a connection of the political with the religious. Although such moves are in intention benign, I conclude that political and security interventions and justifications for religion in education will inevitably shift the aims and purposes of religious education to the aims and purposes of political and security interest.     

Strategic leadership for large‐scale reform: the case of England's national literacy and numeracy strategy

Both ‘strategic’ and ‘distributed’ forms of leadership are considered promising responses to the demands placed on school systems by large‐scale reform initiatives. Using observation, interview and survey data collected as part of a larger evaluation of England's National Literacy and Numeracy Strategies, this study inquired about sources of leadership, the distribution of leadership functions across roles and how such distribution could also provide the strategic coordination necessary for successful implementation of such an ambitious reform agenda