Schoolchildren’s transitive reasoning with the spatial relation ‘is left/right of’

We examine schoolchildren’s reasoning with spatial relations, such as ‘is to the left of’. Our aims are to obtain a more precise account of the effect of working memory on reasoning, a more detailed understanding of the internal representation of mental models and a developmental perspective. We discuss two experiments in which 348 children, between eight and twelve years old, needed to verify conclusions for 24 reasoning problems describing the...