#lecturing__lecture  teaching by giving a discourse on some subject (typically to a class)
  supertype:  pedagogy__teaching__instruction  the profession of a teacher; "he prepared for teaching while still in college"; "pedagogy is recognized as an important profession"
  part:  lecture_demonstration
  part of:  course
  subtype:  talk  a act of giving a talk to an audience; "I attended an interesting talk on local history"
     subtype:  chalk_talk__chalktalk  a talk that uses a blackboard and chalk

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