propaedeutic

Providing introductory instruction.

Preparatory instruction.

Pertaining to propædeutics, or the introduction to any art or science; relating to preliminary instruction: instructing beforehand.

A branch of knowledge introductory to a particular art or science; a subject to be mastered as a preliminary to some other subject.

Of, pertaining to, or conveying, preliminary instruction; introductory to any art or science; instructing beforehand.

Providing preparatory or introductory teaching.

Such a course of instruction.

a course that provides an introduction to an art or science (or to more advanced study generally)

preceding and preparing for something