Structural aspects of controllability and observability—I. tensorial aggregation

The classical criteria for controllability and observability are given a tensorial formulation which is then extended into Boolean form directly related to a digraph interpretation of system structure. This is examined in detail with particular reference to group theoretic aspects, invariant properties under transformation, the term rank test and the existence of zero eigenvalues.Within this framework the structural design concepts of potential controllability and observability are presented in generalised terms.     

Structural aspects of controllability and Sobservability—II. digraph decomposition

The graph theoretic aspects of controllability and observability are examined and related to the tensorial formulation of Part I of the paper. Particular emphasis is given to the significance of the system digraph decomposition and the relevance of this to certain system algebraic properties of interest in control theory.     

Enhancing self-efficacy in minority youth: A group technique

This article presents a two-phase group process that can be utilized to develop self-efficacy in minority youth. The process involves helping minority students to develop realistic educational and precareer goals through group supported analysis of individual strengths, weaknesses, resources, and roadblocks to success. Modeling, role playing, and outside activities are the major components of the group process.     

Correlates of the concept assessment kit-conservation for educable mentally retarded children

The relations of the CAK-C to the Stanford-Binet and the WRAT were explored for a sample of 155 educable mentally retarded children. Correlational analyses indicated that: (a) The CAK-C is more closely related to MA than to either CA or IQ. (b) Both Reading and Arithmetic are more closely related to MA than to the CAK-C. The results support the position that Piagetian intelligence is somewhat distinct from psychometric intelligence, but suggest that the latter is the better predictor of academic achievement.     

Promoting a self-sustaining learning community: investigating an internal model for teacher development

The authors report an investigation of a five-step structured study-group approach to promoting a?self-sustaining learning community that supports teachers in developing the ‘habits of mind’ necessary for improving literacy acquisition and development for urban African American students attending a low-performing, high-poverty elementary school. The authors report that over a two-year time period the conversations among the teachers at the study-group meetings changed to be more positive about the children, to make linkages between themselves and the culture the children bring to school, to enthusiasm for sharing their own strategies and engaging in public reflection, and collaborating in developing new instructional approaches.     

The school-based work experiences of student teachers

The increased responsibility now given to schools for initial teacher training (ITT) in partnership with training institutions has led to questions about how prepared and confident teachers are to assume their new role, and the support they provide for students to teach the arts. This research enquires into the situation and found the development of students' subject knowledge in the arts to be a matter of concern. As time on ITT courses is cut and teachers acknowledge the need to enhance their own knowledge-base in the arts, there is uncertainty about the quality and adequacy of training for student teachers in the arts.     

‘Am I safe here and do you like me?’ Understanding complex trauma and attachment disruption in the classroom

Elementary and special education teachers and school counsellors currently provide support to children presenting learning disabilities and behavioural problems symptomatic of the more hidden diagnosis of complex trauma resulting from abuse or severe attachment disruption. Specific disorders such as attention deficit/hyperactivity disorder (AD/HD) may be diagnosed in such children, but not the aetiology of complex trauma, resulting in missing information in the development of remedial and behavioural interventions. The evolving field of trauma counselling provides important information to special education teachers and school counsellors who work with children who have experienced trauma. In this review article authors Linda O'Neill of the University of Northern British Columbia (UNBC), Francis Guenette who is a doctoral student at the University of Victoria and Andrew Kitchenham of the University of Northern British Columbia summarise attachment, neurobiological, and complex trauma research that can be used in school settings to understand better the needs of these children. They conclude by suggesting that teachers and school counsellors would benefit from training on the consequences of childhood trauma and attachment disruption to develop interventions that will be effective and to identify what types of behaviours children can control and those they cannot.