~(하)도록 – so that, so as to, aim/purpose

아침 일곱 시에 밥을 먹도록 준비해 주세요 – Please prepare my meal so that I can have it at 7:00
이 버스를 타도록 (/타기위해 ) 빨리 일어나야 해! – We should get up early so as to (in order to) take this bus!
잊지 않도록 메모하세요 – please take a note so that you won’t forget it.
아침에 일찍 일어나도록 어젯밤에 일찍 잤어요 = I went to bed early last night for the purpose of (in order to) get up early in the morning 
다른 승객들이 편히 탈 수 있도록 신문을 읽지 마세요 = so that other riders can ride comfortably, please don’t read a newspaper on the train
학생들이 알아들을 수 있도록 천천히 말하세요 = Speak slowly so that the students can understand you