supervision vs tutorial

supervision

noun
  • A tutorial session for an individual student or a small group. 

  • The act or instance of supervising. 

  • Responsible oversight. 

tutorial

noun
  • An interactive class taught by a tutor to students at university or college, individually or in small groups. 

  • A video or text that is basically a how-to (advice or instruction on a particular topic) 

  • A self-paced learning exercise; a lesson prepared so that a student can learn at their own speed, at their convenience. 

adj
  • Of or pertaining to a tutor; belonging to, or exercised by, a tutor. 

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