The common purpose of models is to provide simplified representations of other phenomena. Depending on type, they are suitable for communication, documentation, prognostication, problem solving, and more. Various types of models, such as drawings, mock-ups, flow charts, and mathematical formulae, are important tools in engineering work. An…

This article describes a study undertaken in New Zealand, England and Sweden and is based on the use of a tool developed by the researcher as a professional development and teaching tool in technology education for teachers of students between four and six years of age. The aim of the research was to investigate teachers' views of the…