Angle and rotation: Effects of different types of feedback on the quality of response

The study compares the levels of response to angle/rotation problems presented on screen with a Logo microworld with the levels of response to similar problems presented on paper. Pairs of children aged from 9 to 11 who had little or no experience of Logo completed the problems in about 40 minutes. Pairs of children completed the problems over a period of eight weeks. The responses, classified using the SOLO taxonomy (Structure of Observed Learning Outcomes), suggested that the effect of the immediate feedback of the screen turtle heading was to inhibit moves to a higher level of response compared to those levels of response reached when responding to paper tests.     

The irrationality of rationalized program development

Conclusions The core of our argument rests in the nature of the relationship between regional and provincial educational authorities and local schools/communities. In the present situation the relationship is ambiguous. On one hand, the province and the boards issue guidelines and demand that local schools develop programs in conformity with them. At the same time the schools are urged to be innovative and to develop programs to meet local needs. Although the drafters of guidelines apparently see no contradiction between these two directives, we, and many practitioners we have talked with, do.It is our position that the local school/community should be primarily accountable to the community it serves for developing learning environments that fairly reflect the community's educational values, expectations, and priorities. The school should be accountable to central authorities for proper expenditure of monies and for observing basic standards of honesty and fair play in its operations. Finally we wish to stress again the importance of providing help rather than advice to developing programs. Advice coming from a source that in the recent past was primarily a legislative and policing agency cannot help but be construed by school practitioners as a thinly disguised directive. Even if this were not the case, advice is of limited value to people who lack the resources and technical expertise to implement their educational ideas. Real help, in the form of needed resources, technical services, and expert consultation, might inject a new spirit of goodwill and cooperation into what has been at best a guarded relationship between the schools and central educational authorities.OISE     

Computational auditory scene analysis: listening to several things at once

The problem of distinguishing particular sounds, such as conversation, against a background of irrelevant noise is a matter of common experience. Psychologists have studied it for some 40 years, but is is only comparatively recently that computer modelling of the phenomenon has been attempted. This article reviews progress made, possible practical applications, and prospects for the future.