The ratio of students per teacher in Thailand Primary ratio of 19: 1 compared to the number of participants. Higher than the US, Finland, China and New Zealand. The ratio of students per teacher at the Secondary Thailand 23: 1 higher than the average of the middle-income countries, which are on average 20: 1 because the education system in Thailand and the United States for different styles of teaching are not the same. The teaching methods are used in lectures by the professor or lecturer. But America is different clearly. Instructor / professor / lecturer or officer is an open issue and the students in a discussion topics are described in the students studying in Asia and Europe to study several dimensions, better than students in single or. Only in America