The paper presents and analyses a sequence of events that preceded an insight solution to a challenging problem in the context of numerical sequences. A three­week long solution process by a pair of ninth­-grade students is analysed by means of the theory of shifts of attention. The goal for this article is to reveal the potential of this theory…

Prompted by the need for leaders able to turn around chronically low-performing schools, states, universities, education groups, and school districts in the US have initiated a variety of principal development programs. Some programs focus on enhancing the skills of experienced administrators, while others target talented teachers and even…