EntityQ1819937· pop 20· linked from 66 articlesactivity theorySign in to savesocial-science theory for understanding human activities as systemic and socially situated phenomena based on research by Sergei Rubinstein in the 1930sConnectionsLev VygotskyEntitySoviet UnionConceptInternational Standard Book NumberEntityIvan PavlovEntitypsychoanalysisEntityWayback MachineEntitydigital object identifierEntityInternational Standard Serial NumberEntityethnographyEntitypragmatismEntitysocial psychologyEntitybehaviorismEntityUniversity of WashingtonEntitycognitive scienceEntitycognitive psychologyEntityOCLC, Inc.EntityJSTOREntitydialectical materialismEntityergonomicsEntityeducational psychologyEntityCategoriesPsychological theoriesSocial constructionismSocial philosophySociological theories