Future teachers flunk math.

Three in four students in tertiary teacher training courses have trouble solving elementary school level mathematics problems, a university survey has found.

A survey conducted by two professors from Kyoto University and Tokyo's Keio University found that about 60 percent of students in the courses could not convert square kilometers to square meters.

"This shows that education carried out between elementary school and high school has been stripped of its contents," one of the professors said. "We want people to think what it will mean to have these students …