The purpose of this study was to identify knowledge construction patterns in a local learning community. Observation, documents, and semistructured interviews were employed to collect data. Twenty learners were interviewed. Data were analyzed inductively using the constant comparative method. Five major patterns--radiation, circulation, simulation, socialization, and contextualization--were generalized from an analysis of the data, and their applications in practice were discussed. These patterns concretize the ideas of social construction and emphasize the different aspects of learning in the process of constructing knowledge. The five patterns indicate how knowledge is socially constructed when learners interact with others and their surroundings. This article reveals the main factors that play significant roles in knowledge construction, such as social interactions, social relationships and social connections, knowledge relevance, and knowledge and its social entities.