@prefix n9j: <http://data.loterre.fr/ark:/67375/N9J> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix isothes: <http://purl.org/iso25964/skos-thes#> .

n9j:-QGTQ90J5-N
  skos:prefLabel "professional organizations"@en ;
  a skos:Concept ;
  skos:narrower n9j:-D0HFXJL8-T .

n9j:-D0HFXJL8-T
  owl:sameAs <https://concepts.sagepub.com/social-science/concept/National_Council_of_Teachers_of_Mathematics> ;
  skos:definition "Since its inception, the National Council of Teachers of Mathematics (NCTM) has had a significant influence on mathematics teaching and learning as well as national policy. The organization's history has been intertwined with different educational reform movements and influenced every major school mathematics initiative in the past 100 years. [Source: Encyclopedia of Educational Reform and Dissent; National Council of Teachers of Mathematics]"@en ;
  a skos:Concept ;
  skos:inScheme n9j: ;
  skos:broader n9j:-QGTQ90J5-N ;
  skos:prefLabel "National Council of Teachers of Mathematics"@en .

n9j:-organizations
  a isothes:ConceptGroup ;
  skos:prefLabel "organizations"@en ;
  skos:member n9j:-D0HFXJL8-T .

n9j: a skos:ConceptScheme .