Tutorial and Instructive

noun

• A session of intensive tuition given by a tutor to an individual or to a small number of students.

adjective

• Of or relating to tutors or tutoring.
  • usage: "tutorial sessions"

(a.) Of or pertaining to a tutor; belonging to or exercised by, a tutor.

adjective

• Serving to instruct or enlighten or inform.
  • synonyms: informative

(a.) Conveying knowledge; serving to instruct or inform; as, experience furnishes very instructive lessons.