It was completely new, and no one had done it before, including adults. (Laughter) BL: Including the teachers, and that was really hard for the teachers.
이건 완전히 새로운 것이고, 이전에 다른 사람이 실험했던 적이 없는거였어요. 어른들도요. (웃음) 강연자: 교사를 포함해서, 이건 교사들에게도 어려운 문제죠?