경기도교육청영어교과서1과본문질문입니다.
If a balance is achieved, all students will be taught partly in a manner they prefer, which leads to an increased comfort level and willingness to learn,and partly in a less preferred manner, which provides practice and feedback in ways of thinking and solving problems which they may not be comfortable but which they will have to use to be fully effective professionals.

이 문장에서 problems 뒤에 있는 which가 관계대명사인가요 아니면 ways 앞의 in과 연결되어 관계부사로 쓰인건가요? 관계대명사라고 보기엔 뒤의 절이 완벽한 것 같아서요.. 설명 부탁드립니다.