Teacher and child talk in active learning and whole‐class contexts: some implications for children from economically less advantaged home backgrounds

This paper reports the experiences of 150 children and six primary teachers when active learning pedagogies were introduced into the first year of primary schools. Although active learning increased the amount of talk between children, those from socio‐economically advantaged homes talked more than those from less advantaged homes. Also, individual children experienced very little time engaged in high‐quality talk with the teacher, despite the teachers spending over one‐third of their time responding to children's needs and interests. Contextual differences, such as the different staffing ratios in schools and pre‐schools, may affect how well the benefits of active learning transfer from pre‐school contexts into primary schools. Policy‐makers and teachers should pay particular attention to the implications of this for the education of children from economically less advantaged home backgrounds.     

Disseminating development initiatives in British higher education: a case study

The Effective Teaching and Assessment Programme (ETAP) was commissioned and funded by the Higher Education Funding Councils for England, Scotland and Wales and ran during the academic year 1993–4. Its aim was to identify and disseminate best practice in specific subject areas, student support and resource based learning. ETAP supported five projects, each undertaken by a consortium of British higher education institutions. This paper reports an evaluation of the programme based on interviews with leaders of the individual projects, along with a questionnaire survey of potential users of the products of the programme. A framework is offered for interpreting the results of the evaluation. Six different meanings of the word dissemination are identified, corresponding to the different degrees to which users actively engage with the materials produced. These distinctions are applied to the data collected and the findings are summarised in terms of the key notions of awareness of what is available, the attitude of teaching staff towards centrally-produced materials, and the accessibility of those materials. The implications of these three concepts are discussed in relation to the technical, organisational and presentational issues which promote or hinder the effectiveness of the dissemination. A number of policy recommendations for Funding Councils and institutions are outlined.     

The effect of acceleration signal processing for head impact numeric simulations

Brain injury research in sport employs a variety of physical models equipped with accelerometers. These acceleration signals are commonly processed using filters. The purpose of this research was to determine the effect of applying filters with different cutoff frequencies to the acceleration signals used as input for finite element modeling of the brain. Signals were generated from reconstructions of concussion events from American football and ice hockey in the laboratory using a Hybrid III headform. The resulting acceleration signals were used as input for the University College Dublin Brain Trauma Model after being processed with filters. The results indicated that using a filter with a cutoff of 300 Hz or higher had little effect on the resulting strain measures. In some cases there was some effect of the filters on the peak linear (8–30g) and rotational measures (1000–4000 rad/s²), but little effect on the finite element strain result (approximately 2–6 %). The short duration and high magnitude accelerations, such as the puck impact, were most affected by the cutoff frequency of different filters.