instructive

/ɪnˈstrʌktɪv/
adjective
  1. Providing useful information or knowledge; educational.
    • The documentary about volcanoes was very instructive for the students.
    • Her instructive comments helped me improve my writing skills.
    • The museum offers instructive exhibits on ancient civilizations.
What does "instructive" mean? | whatsthatwordmean | whatsthatwordmean