, english and math. >> reporter: matsukawa's methods including giving students memos with key points to help them answer questions. yohi ishimoto enrolled in the supplementary classes. after living in the school gymnasium for three months, yohi finally moved into temporary housing. his father used to own a shipping company, but the tsunami swept away the family home along with eight trucks. now yohi, his brother and parents share temporary housing. his grandmother is still missing. yohi lost all of his school supplies in the disaster so he couldn't study for some time. now in the temporary housing he has trouble concentrating because he doesn't have his own room. >> translator: this place feels small. it's distracting. we hear noise from next door. >> translator: what concerns me is the level of academic performance. i'm worried that the disruption caused by the disaster will result in students performing worse than before. >> reporter: the classes were held for three mornings. student teachers made it possible for every student to receive personal attention with two or three teacher