@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix isothes: <http://purl.org/iso25964/skos-thes#> .

<https://concepts.sagepub.com/social-science/concept/Winnetka_Plan>
  skos:definition "The Winnetka Plan was an innovative curriculum developed by Carlton W. Washburne and implemented in the Winnetka Public School District in 1919. The Winnetka Plan was a curriculum that featured common essentials (e.g., spelling) and creative group activities (e.g., art) as a means of dividing subjects. [Source: <a href=\"https://sk.sagepub.com/reference/educationalreform/n461.xml\" target=\"_blank\" data-id=\"to-sk\">Encyclopedia of Educational Reform and Dissent; Winnetka Plan</a>]"@en ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/professional_development> ;
  skos:prefLabel "Winnetka Plan"@en ;
  a skos:Concept .

<https://concepts.sagepub.com/social-science/concept/professional_development>
  skos:prefLabel "professional development"@en ;
  a skos:Concept ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/Winnetka_Plan> .

<https://concepts.sagepub.com/social-science/concept/conceptgroup/concepts>
  a skos:Collection, isothes:ConceptGroup ;
  skos:prefLabel "concepts"@en ;
  skos:member <https://concepts.sagepub.com/social-science/concept/Winnetka_Plan> .