Using visual support in preschool phonemic segmentation training

In an earlier training study we found that the use of visual support in phonemic segmentation training provided no additional value for poor readers and spellers from schools for children with learning disabilities, having problems segmenting speech (Kerstholt, van Bon & Schreuder 1994). Previous research (e.g., Hohn & Ehri 1983) suggests, however, that visual support – such as alphabet letters – does facilitate the segmentation teaching of preschoolers. Hence, it was expected that visual support would be beneficial in phonemic segmentation training only prior to formal reading and spelling instruction. The purpose of the present study was to test this expectation. One group of preschoolers was trained in phonemic segmentation with diagrams and alphabet letters as visual support, another group was trained without visual help. Results show the preschoolers to improve their phonemic segmentation, reading and spelling skill significantly. It made no difference, however, whether the children were trained in phonemic segmentation with or without the help of visual support. The findings of the present study and those of our earlier study indicate visual support to be useful in phonemic segmentation training only under certain conditions. It is suggested that differences in orthographic properties of the languages involved may explain the difference between the Anglo-Saxon studies that did show an additional effect of letters and a number of Dutch studies that did not.     

Towards alternative trajectories? Reconfigurations in the Dutch electricity regime

In the early 2000s Dutch electricity companies are increasingly investing in technologies that enable them to replace coal with biomass. Replacing large amounts of coal (up to 40%) requires the companies to invest in technological trajectories alternative to the ones they have supported over the past decades. This paper aims to understand why these incumbent firms in the Dutch electricity regime are developing alternatives. The second aim of the paper is to provide a way for assessing the potential of innovations. The paper does so by bringing together insights from literature on (socio-) technical regimes and insights from literature on technological and market niches (strategic niche management). The main conclusion is that both niche processes (at the level of experimenting with alternatives) and changes in the incumbent regime are necessary for understanding the innovation journey of a new technology. A two-by-two matrix is developed that can be used for both analysis and governance purposes.     

Towards a better grasp of what matters in view of ‘the posts’

This response to McKenzie suggests that the issues of representivity, legitimacy and politics, inscribed within an institutional continuism characteristic of modernity within the McKenzie discourse, could well be recast within a reflexive view informed by insights derived with developing social theory. It briefly overviews the struggle for human agency that played out within the deconstructive engagements of the posts and probes how perspectives in social theory are opening the way for a break with features of environmental education as an institutional field. The review points to a reconstituting of the idea of environmental education research from scholastic field of/for environmental awareness and sustainable development, to a reflexive engagement within processes of social reproduction and reorientation in a changing world. A shift such as this would constitute a subtle change in a developing field of research, to situated design decisions of reflexive engagement (research) in social fields constituted within developing cultural contexts of risk.     

Linked to innovation: Shaping an innovative climate through network intentionality and educators’ social network position

This study investigates whether educators’ cognitive and structural social capital is associated with perceptions of innovative climate in charter schools. We explore a new concept to assess educators’ cognitive social capital, namely network intentionality, meaning the extent to which an educator is intentional in connecting and interacting with others. We hypothesize that network intentionality (cognitive social capital) is related to the extent to which educators perceive their school’s climate to be innovative, but that this relationship is dependent on the educator’s position in their school’s social network (structural social capital). Findings suggest that the relationship between cognitive social capital and perceptions of innovative climate is partly mediated by structural social capital. In other words, those educators with high network intentionality, as evidenced by an orientation towards connecting others, also perceive the school’s climate as being more innovative, partly because this strong network intentionality is associated with more out-going relational activity. This work provides unique insights into the factors that may be associated with teacher collaboration in successful charter schools serving traditionally underserved populations, and suggests ideas for schools wishing to support teacher collaboration and innovation.     

Rubric formats for the formative assessment of oral presentation skills acquisition in secondary education

Educational technology research and development - Acquiring complex oral presentation skills is cognitively demanding for students and demands intensive teacher guidance. The aim of this study was...     

Literature and the Particularities of Dialogue

Index to the Quarterly Journal of Speech, Volumes I to XL, 1915–1954. Prepared under the auspices of the Speech Association of America. Compiled by Giles Wilkeson Gray. Dubuque, Iowa: Wm. C. Brown Company, 1956; pp. ix+338. $5.00.