noun
teaching material fees; cost of educational materials
Refers to fees or expenses for textbooks, handouts, and other instructional resources, often in school or training contexts.
新学期の教材費は約五千円です。
The teaching material fees for the new semester are about 5,000 yen.
教材費は授業料に含まれていますか。
Are the teaching material fees included in the tuition?
教材 means 'teaching materials' themselves, whereas 教材費 is the fee or expense for those materials.
Compound of 教材 (teaching materials) and 費 (expense, cost).