The purposes of this research ware to develop and compare diphthongs pronunciation ability
of Pratomsuksa 1 students with learning disabilities at Khu Mueang Wittaya School before and after
the implementation by using the language skills training, 1 unit, 15 plans, 1 hour each, a total of 15
hours to develop the diphthongs pronunciation ability.
The research results can be summarized as follows:
Data analysis showed that the development of the ability to read diphthongs aloud of students
with learning disabilities at Khu Mueang Wittaya School by using language skills training Students
have the ability to read diphthongs as follows:
1. Aiyada Printhong, Mathayom 1, before studying, had a score value of 4.8 points, equal to
48% in the level of improvement. after studying, the score value was between 7.6 points or 76% in
Fair skill level
2. Phongsakorn Loaoma. Mathayom 1 before studying, the score value was between 4.8 points,
equal to 48% in the ability to improvement. After studying, the score value was between 8 points or
80% in Fair skill level.