수학사랑 0 4013 2018.06.24 18:00 http://www.daejonilbo.com/news/newsitem.asp?pk_no=1322953 + 145 http://www.daejonilbo.com/news/newsitem.asp?pk_no=1322953 + 132 "경쟁교육 안돼…성적 줄세우기 안하니 '중2병' 사라져" 0 0