We propose a vision of the structure of knowledge and processes of learning based upon the particularity of experience. Highly specific cognitive structures are constructed through activities in limited domains of experience. For new domains, new cognitive structures develop from and can call upon the knowledge of prior structures. Applying this vision of disparate cognitive structures to a detailed case study, we present an interpretation of addition‐related matter from the corpus and trace the interplay of specific experiences with the interactions (...) of ascribed, disparate structures. The interpretive focus is on learning processes through which a broadly applicable skill emerges from the interaction and integration of knowledge based on specific, particular experiences. (shrink)