The relationship between quantitative problem solving and commonsense has provided the basis for an expanding exploration for Colleran and O'Donoghue. For example the authors (Colleran et al., 2002, 2001) discovered the pivotal role commonsense plays in adult quantitative problem solving and suggest commonsense is an important "resource? in the adult problem-solving context. In more recent papers "Adult Problem Solving and Commonsense": (Colleran et al., 2003a) and "Adult Problem Solving and Commonsense: New Insights" (Colleran et al., 2003b) the authors explored the valued position given to "higher order" thinking as distinct from the "other", "lower" form of thinking, sometimes described as commonsense thinking. They also looked at the manner in which commonsense is created from "natural learning" in a range of different environments. In Colleran and O'Donoghue (in press) the authors broadened the investigation to include the views of a number of researchers in the field of commonsense who suggest that commonsense is a powerful intellectual resource and provides the bedrock on which mathematical understanding is built. The authors have come to the view that the creation and use of commonsense require intelligent, creative thinking and this "order? of thinking takes place naturally in the commonsense environment. Further this intelligent thinking is supported by attitudinal as well as structural elements that facilitate the individual to engage new commonsense situations so that they become natural learning environments.