Background: Inquiry learning in science provides authentic and relevant contexts in which students can create knowledge to solve problems, make decisions and find solutions to issues in today’s world. The use of electronic networks can facilitate this interaction, dialogue and sharing, and adds a new dimension to classroom pedagogy.
Purpose: This is a report of teacher and student reflections on some of the tensions, reconciliations and feelings they experienced as they worked together to engage in inquiry learning. The study sought to find out how networked ICT use might offer new and different ways for students to engage with, explore and communicate science ideas within inquiry.
Sample: This project developed case studies with 6 science teachers of year 9 and 10 students, with an average age of 13 and 14 years in three New Zealand high schools. Teacher participants in the project had varying levels of understanding and experience with inquiry learning in science. Teacher knowledge and experience with ICT were equally diverse.
Design and Methods: Teachers and researchers developed initially in a joint workshop a shared understanding of inquiry, and how this could be enacted. During implementation, the researchers observed the inquiry projects in the classrooms and then, together with the teachers, reviewed and analysed the data that had been collected.
Results: At the beginning of the project, some of the teachers and students were tentative: inquiry based teaching supported by ICT meant initially that the teachers were hesitant in letting go some of the control they felt they had over students learning, and the students felt insecure in adopting some responsibility for their own learning. Over time a sense of trust and ease developed and this ‘control of learning’ balance moved from what was traditionally accepted, but not without modifications and reservations.
Conclusions: There is no clear pathway to follow in moving towards ICT-supported science inquiry in secondary schools. The experience of the teacher, the funds of knowledge the students bring to the classroom, the level of technological availability in the school and the ability of the students are all variables which determine the nature of the experience. 相似文献
ABSTRACTFor over a decade, co-operative schools have struck a note of discord within the highly orchestrated context of English education policy. They encapsulate an old set of ideas but re-articulate them for new times by engaging with educational frameworks which are locked into the so-called global education reform movement (GERM) based upon on standards, standardisation, a mixture of centralised and devolved accountabilities, leadership, testing and accountability. Yet co-operative schools ostensibly aim to embed a set of wide-ranging values and principles: equality, equity, democracy, self-help, self-responsibility and solidarity as well as the principles of education, democratic control and community ownership, all of which echo the history of labour movements. The co-operative legal model not only adheres to co-operative values and principles but necessitates stakeholder involvement in the governance of schools: pupils, staff, parents, community and, potentially, alumni are all expected to play a role. These are compared to David Hargreaves’ ideas about a ‘self-improving school system’. I analyse the emergence of the co-operative network and the reasons for its dramatic growth alongside the complex problems it faced. In turn, these help us to understand the possibilities and contradictions inherent in attempts to build inclusive and democratic educational networks. 相似文献
The performance of speaker verification systems is often compromised under real-world environments.For example,variations in handset characteristics could cause severe performance degradation.This paper presents a novel method to overcome this problem by using a non-linear handset mapper.Under this method,a mapper is constructed by training an elliptical basis function network using distorted speech features as inputs and the corresponding clean features as the desired outputs.During feature recuperation,clean features are recovered by feeding the distorted features to the feature mapper.The recovered features are then presented to a speaker model as if they were derived from clean speech.Experimental evaluation based on 258 speakers of the TIMIT and NTIMIT corpuses suggest that the feature mappers improve the verification performance remarkably. 相似文献
