教材中心英语

course bookA course book is a textbook that students and teachers use as the basis of a course.这个是正解

teaching material

书面用语应该是coursebook：Acoursebookisatextbookthatstudentsandteachersuseasthebasisofacourse.口语一般说textbook的，记得大学老师上课时会说"Openyourtextbook…"之类的话的。