Quoting Ng Eng Heng in today ST.
"the student-to-teacher ratio will be further improved across the board, from 20:1 last year to 15:1 in 2015 for primary schools, and from 17:1 to 14:1 for secondary schools."
Oh yeah? My kids are in classes where there are at least 40 pupils to a teacher. Dr. Ng numbers are technically correct, but practically wrong. Sigh! The govt have so many such silly numbers.