Abstract
Some mathematics educators have pointed out that students seeing or using so-called
concrete representations of concepts may not construct the expected
conceptualisations. This paper presents research that specifically considered how
problem solving with concrete materials could lead to the development of concepts.
Students in Years 2 and 4 in primary school were engaged in spatial problem solving.
A model developed by the author emphasises the interaction of concepts, imagery,
heuristic thinking, and affective processes in problem solving as well as the
importance of manipulation of materials and interaction with others. Students'
attention to certain aspects of the problem, to other problem solvers, or to the
materials was seen as particularly significant in the problem-solving process.