educational vs pedagogic

educational

adj
  • Of, or relating to education. 

  • Instructive, or helping to educate. 

noun
  • A free (or low cost) trip for travel consultants, provided by a travel operator or airline as a means of promoting their service. A fam trip 

pedagogic

adj
  • Synonym of pedagogical 

How often have the words educational and pedagogic occurred in a corpus of books? (source: Google Ngram Viewer )