instructional

/IH0 N S T R AH1 K SH AH0 N AH0 L/
noun
  1. 1

    A book, film, etc. intended to instruct.

adjective
  1. 1

    Intended for purposes of instruction, for teaching.

    โ€œThe manual might have been instructional had anybody actually taken the time to read it.โ€

Source: https://en.wiktionary.org/wiki/instructional