I agree that speaking English is the first ploblem of Thai children. Students can study. But when faced with actual situation was not used. Or use less rather than more available between students good.And light in perception is different, application will be different. Teaching must be divided by the content starting from the good students. With dark content. If the good can get no response. Application.And they turned on the part of the students learning medium and light intensity will reduce the content. And will teach in the content that students receive. Students can learn and happy in learning more, not under too much pressure.