MORE TIME IN SCHOOL=HIGHER MATH SCORES: Math scores of kids in Denmark rose when they spent more time in school--but their literacy scores did not budge. A study published in the June issue of Education Research studied 64% of all 16 year old students in Denmark from 2003 to 2006. (That amounts to more than 144,500 students.) During that period, the government upped the time students spend in school a tad. Even one extra hour a year seemed to produce higher math scores. Literacy scores stayed flat. Why? Maybe parents do a better job in helping their kids learn to read than they do with math, postulated study author Vibeke Myrup Jensen. To read the full report will set you back almost $40. The summary is here.