หลักสูตรนานาชาติ International Program

In this generation of borderless information and situations of the world that our children are growing into, they should be prepared to live wisely (not to be disadvantaged) in any cultures. To be ready, they should be able to communicate in English, an essential international language that connects different cultures, religions and economies. Therefore, the administration with vision and experience is determined to develop our education system to meet the expectation of the parents, the community, and the society by applying the English Immersion Methodology to suit the context of the community and society. Students are expected to acquire the fundamentals in academics that lead to a good career in the future. For more than 24 years, the administrators have continuously supervised the development of the school curriculum, study materials, and both Thai and international teachers.

In addition, we have introduced a new effective English instructing innovation called GrapeSEED English Communication Solution to students starting from Grade 2. This innovation assists students to speak English with a clear accent. The amazing outcome contributes to the reputation of the school, which increases the number of enrollment within 3 years.

The International Program answers the demand of parents who want their children to be instructed in English in almost all subjects (80% of the curriculum) by native English-speaking teachers, who are also homeroom teachers. Each kindergarten classroom is limited to 16 students and not more than 18 students from Grade 1 to Grade 9. Each classroom is air-conditioned and has a Thai and an international teacher as homeroom teachers.

Lertlah International Program
“Learn English for Fluent Communication in Accordance with the Thai Culture”

  • All subjects are instructed in English, except Thai Language and subjects related to Thai society and culture. Through implementing the English Immersion Methodology, students learn English naturally while still being able to use the Thai language and interact with Thai values. Students are also competent in speaking, listening, reading, writing, and thinking critically in both English and Thai.
  • The majority of teachers are Canadian who graduated with a Bachelor of Education and have experience teaching English as a second language. Their care and warmth for the students boost their confidence in speaking in English naturally.
  • GrapeSEED English Curriculum is implemented for students to learn English as if they are learning from their mother. The study materials include more than 40 units. Students become more confident in speaking, reading and writing English; they are prepared for higher education.
  • The school campus has modern facilities, is safe and clean, and includes necessary special classrooms, such as the computer lab, library, swimming pool, ball-room and science lab. A 24-hour security system and surveillance camera system ensure the safety of the students.
  • For further information, please contact us at
    No. 44, Soi Petkasem 77, Kwang Nongkhanplu, Khed Nongkham, Bangkok 10160
    TEL: 02-8099081 to 5
    FAX: 02-8099898
    Email: information@lertlah.com