A complete, non-trivial, traveling sales tour problem contains at least one "indentation", where nodes in the interior of the point set are connected between two adjacent nodes on the boundary. Early research reported that human tours exhibited fewer such indentations than expected. A subsequent explanation proposed that this was because…

Leadership is a highly complex activity, as leaders respond to increasing diversity and external accountability. Additionally, there is increased recognition that leadership is deeply contextual, sensitive to macro-politics of systems and micro-politics of individual schools. In Ontario, Canada, the school improvement effort is focused on raising…

In Alberta, 167 elementary students completed an awareness of technology survey in years 1 and 3 of a study. Even before technology education, children had ideas about testing structural strength. Development of testing knowledge was not sequential. Results may have been influenced by the various ways design technology was taught during year 2.…