designed or intended to teach
didactic - educational
Something ‘didactic’ is intended to teach or instruct. The term was once used in an exclusively neutral manner but has since developed a negative connotation, being associated with a fixed and overly instructive, moralistic, and dull way of teaching or explaining something.
The book I’m reading is didactic. There is a clear moral lesson being presented.
Mary takes a didactic approach to teaching. There is very little class participation in her lessons.
I don’t intend to instruct didactically. I prefer trainees to learn through trial and error.