그에 따르면 성품을 키우는 독서교육, 협동학습, 가정과 함께 연계한 품성교육을 한 학교가 그것을 실시하지 않은 학교보다 학업성취도가 높았음을 증명했다.
According to him, a school with a character-building reading education, cooperative learning and a personality education in conjunction with family, proved to have higher academic performance than a school without it.