The ratio of students to teachers growth. Primary ratio 19: 1 compared to the number of students was higher than the U.S., Finland, China and New Zealand, the ratio of students to teachers in secondary industry. 23:1 higher than average middle-income groups which were 20:1 due to Thai and American education system of different instructional model is not the same system teaching in Thailand will use the method described by professor or lecturer But America is different obviously.Instructor / teacher / lecturer or staff will open issues and allow students to converse in the thread to lecture in that day, that the students learning in Asia and Europe will be able to study many dimensions, which is better than that of the students in No.Single or in America alone.