Developing a science teacher education course that supports student teachers’ thinking and teaching about the nature of science

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.     

Influence of upright versus time trial cycling position on determination of critical power and W′ in trained cyclists

Body position is known to alter power production and affect cycling performance. The aim of this study was to compare mechanical power output in two riding positions, and to calculate the effects on critical power (CP) and W′ estimates. Seven trained cyclists completed three peak power output efforts and three fixed-duration trial (3-, 5- and 12-min) riding with their hands on the brake lever hoods (BLH), or in a time trial position (TTP). A repeated-measures analysis of variance showed that mean power output during the 5-min trial was significantly different between BLH and TTP positions, resulting in a significantly lower estimate of CP, but not W′, for the TTP trial. In addition, TTP decreased the performance during each trial and increased the percentage difference between BLH and TTP with greater trial duration. There were no differences in pedal cadence or heart rate during the 3-min trial; however, TTP results for the 12-min trial showed a significant fall in pedal cadence and a significant rise in heart rate. The findings suggest that cycling position affects power output and influences consequent CP values. Therefore, cyclists and coaches should consider the cycling position used when calculating CP.     

Marking the Difference: An investigation of the criteria used for assessing undergraduate dissertations in a business school

Although the outcomes of a first degree are complex, UK universities continue to use a single measure for grading the student's performance—namely the degree classification. This classification has significant implications for the student, prospective employers, and for the awarding institution. There is some evidence of changing perceptions of degree classes, for example that third class (and even, in some cases, lower second class) awards are unacceptable. At the same time there is concern about maintenance of quality standards in HE, and of possible grade inflation. The final degree class, although a single measure, results from an accumulation of marks achieved throughout the degree course; it is the combined weighting of individual tutor marks which ultimately determines the student's degree class. This study focuses on the marking process, and the application of criteria within one final year module—the dissertation. The dissertation formed a significant part of the final degree weighting, and there was evidence of the use of different criteria and approaches to marking by staff within the faculty. The study employed a qualitative research methodology—including: a structured group discussion where the issue of criteria was raised and brainstormed; and a questionnaire to staff which asked open questions about the criteria which each used when marking dissertations. The responses were analysed, and common ground and differences identified. Questions are raised concerning (a) the tension which surfaces within the marking process, between individual tutor freedom and institutional demands, and (b) staff development opportunities within the marking process.     

Interpretive responses to images in picture books by primary and secondary school students: Exploring curriculum expectations of a ‘visual grammatics’

As well as maintaining the central role of literature, the new Australian Curriculum: English emphasises the multimodal nature of literacy and requires students in primary and secondary schools to develop explicit knowledge about visual and verbal grammar as a resource for text interpretation and text creation. This study investigated the use of visual grammatics in interpreting picture books by students across Years Four, Five, Seven and Ten following an intensive professional learning programme undertaken by their teachers. A proposed framework describes variation in students' interpretive stance from tactical to diegetic to semiotic. Levels of student semiotic understanding are differentiated and differences between students' oral and written interpretations are discussed in relation the need for explicit teaching of written interpretive responses to multimodal literary texts, drawing on an articulated visual and verbal grammatics appropriate to the teaching of English in primary and secondary schools.     

Visual phonics: an English code buster?

Visual phonics is an instructional program to provide print awareness, alphabet knowledge, and sound-letter correspondence for children with hearing loss who experience difficulty developing a foundation of phonemic awareness skills. Its purpose is "to clarify the sound symbol relationship between spoken English and print" (Waddy-Smith & Wilson, 2003, p. 15). It is implemented in numerous school districts, particularly in California and Florida, and can be learned in a 2-day workshop. Administrators, teachers, and speech pathologists see potential benefit in using Visual Phonics to help students with hearing loss raise their achievement scores in reading and spelling. However, it is critical to note that Visual Phonics has virtually no research base. Researchers, teachers, and speech pathologists are called upon to collect their data and begin research on the effectiveness of Visual Phonics. This is a case in which the research-to-practice gap must be closed.