# Lertlah School — Full Knowledge Document > Lertlah School is a private bilingual school in Bangkok, Thailand, > established in 1994. The school operates three campuses (Petkasem > Road, Kanchanapisek Road, and Kaset-Nawamin Road), offering a > Thai-Canadian bilingual curriculum for students from Nursery level > through Grade 9. ## Full History and Mission ### School Motto "เลิศล้ำคุณธรรม เลิศหล้าวิชาการ" — Morals and Academic Excellence. The motto captures the school's dual commitment: cultivating moral character alongside academic rigor. Across three decades of operation, Lertlah has shaped learners through a bilingual Thai–Canadian curriculum spanning Nursery through Middle School, across three Bangkok campuses. ### Establishment Timeline - **1994** — Lertlah is founded on a three-rai plot, teaching Nursery through Grade 3. - **1996** — Expands to Grade 5 and launches the International Program from Kindergarten. - **2003** — Opens the second campus — Lertlah Kanchanapisek Road. - **2010** — Opens the third campus — Lertlah Kaset-Nawamin Road. - **2018** — Accredited by Canada's Ministry of Education, Manitoba (MECY). - **2024** — Marks 30 years of nurturing learners across three Bangkok campuses. ### Philosophy Each Lertlah campus educates students with sound knowledge alongside virtue, sustained through ongoing cooperation, compassion, and understanding among teachers, students, and parents. ### Vision and Mission — by Campus **Lertlah Petkasem Campus** aims to lead in administering an English Program of international standard — equipping learners to use technology and both English and Thai for learning and age-appropriate communication. Its mission combines discipline with care in nurturing every learner, makes learning joyful both inside and outside the classroom, and builds thinking and problem-solving through hands-on practice. **Lertlah Kanchanapisek Campus** aims to become a model for international-standard educational management — through learning innovation and a participatory approach across teachers, parents, and students. Its mission continually raises standards for teachers, curriculum, and learning resources, encourages learners to embody the school's identity of virtue and capability, and governs with clear vision and good-governance principles. **Lertlah Kaset-Nawamin Campus** aims to be a high-capability school with a distinctive English Program — leveraging modern technology to strengthen the learning process at every level. Its mission designs a distinctive English Program curriculum, adopts modern information and communication technology in teaching, and develops professional teachers with positive attitudes and a learning mindset. ### Objectives — by Campus #### Petkasem Campus Objectives - Learners gain the skills required by the curriculum. - Learners use ICT to acquire knowledge and create content. - Learners communicate fluently in both Thai and English. - Learners practise virtue and contribute to the wider society. - Learners enjoy strong physical and mental health, attending school happily. #### Kanchanapisek Campus Objectives - A prototype of international-standard educational management. - Sustains high standards across leadership, teachers, curriculum, and tech. - Administration governs with clear vision and good-governance principles. - Learners confidently demonstrate the school's virtues and intelligence. - Learners recognize their role as good citizens contributing to society. #### Kaset-Nawamin Campus Objectives - A high-capability school. - A distinctive English Program curriculum aligned with international standards. - A pro-active administrative system recognized by outside agencies. - Modern ICT enhances the learning process across all grades. - A healthy environment with efficient facilities and up-to-date materials. ### Achievements - 30+ years as a leading English Program school in Bangkok (Petkasem campus) - Canadian English-immersion methodology applied across the curriculum - The only educational institute in Thailand accredited by the Canadian Ministry of Education (Kanchanapisek campus) - Associate school of Manitoba's Ministry of Citizenship & Youth (MECY), Canada (Kanchanapisek and Kaset-Nawamin campuses) - Educational and academic exchanges with the University of Manitoba - Collaboration with the Adventist University of the Philippines (Kanchanapisek campus) - Academic and curriculum cooperation with the Adventist University of the Philippines (Kaset-Nawamin campus) - Recognized by Canada's Ministry of Education with an academic quality certificate (Kaset-Nawamin campus) - Study-abroad and cultural-exchange programmes for students ## Detailed Academic Programs Lertlah delivers intensive bilingual instruction under the Thai Basic Education Core Curriculum, enriched with Canadian-inspired pedagogy and project-based learning — from Nursery through Middle School. The curriculum is structured around bilingual fluency in Thai and English across all grade levels, STEAM literacy (science, technology, engineering, arts, mathematics), character and citizenship development (morals, ethics, service learning), and whole-child development (sports, arts, and life skills). ### Program Types **English Program (EP)** — The school's core program. A bilingual Thai–Canadian curriculum with daily immersion in English alongside Thai-language subjects. **International Program (IP / LIPS — Lertlah International Program)** — Pioneered at the Petkasem campus. Canadian-inspired standards blended with Thai context, spanning Nursery through Middle School. ### Grade Levels - **Nursery · Kindergarten (Age 2–6):** Foundational bilingual play-based learning. Builds confidence, curiosity, and imagination from the very first step. - **Primary (Grade 1–6):** Reading, writing, analytical thinking, and collaboration through immersive bilingual classes and inquiry projects. - **Middle School (Grade 7–9):** Advanced bilingual instruction, STEAM depth, leadership, and pathways that prepare students for senior school. ### Subject Balance Lertlah uses an immersion methodology where students learn to use English naturally throughout the school day: - **Kindergarten 1–3:** Students spend half the day with international teachers and half with Thai teachers. - **Grade 1–9 (by subject):** Most English instruction is delivered by international teachers, with Thai teachers supporting English grammar. Mathematics is taught 60% in English and 40% in Thai. Science is taught 70% in English and 30% in Thai. Physical Education and Computer Studies are taught 100% in English. ### Teaching Faculty Lertlah School hires international English-speaking teachers from English-speaking countries, primarily through partnerships with established educational institutions in Canada. This has been the school's approach since 1994. Students learn through natural, immersive interaction with their international teachers across academic subjects and daily classroom life. ## Frequently Asked Questions ### Q: What kind of school is Lertlah School? How many campuses are there? What is the school's academic program? Lertlah School is an English Program private school under the Office of Private Education Commission, with three campuses in Bangkok: Petkasem Road, Kanchanapisek Road, and Kaset-Nawamin Road. ### Q: What grade levels does Lertlah School offer? How do I apply? Lertlah School accepts students from Nursery level through Grade 9. There is no entrance examination — only a placement test used to determine the appropriate grade and class for each student. Class sizes are capped per school policy. Families can apply for the upcoming academic year by contacting any of the three campuses. ### Q: Is Lertlah School's English Program accredited? Lertlah School's English Program is accredited by the Ministry of Education of Canada and recognized by the Thai Ministry of Education as a protocol English Program school — meaning other private schools observe our program as a model. The curriculum is reviewed and improved annually. ### Q: How are English and Thai subjects balanced in the English Program? Lertlah School uses an immersion methodology where students learn to use English naturally throughout the school day. In Kindergarten 1 to 3, students spend half the day with international teachers and half with Thai teachers. From Grade 1 to 9, the balance shifts by subject: most English instruction is delivered by international teachers with Thai teachers supporting grammar; Math is taught 60% in English and 40% in Thai; Science is 70% English and 30% Thai; Physical Education and Computer classes are 100% in English. ### Q: What is Lertlah School's policy for English teachers? Lertlah School hires international English-speaking teachers from English-speaking countries, primarily through partnerships with established educational institutions in Canada. This has been the school's approach since 1994. Students learn through natural, immersive interaction with their international teachers across academic subjects and daily classroom life. ### Q: What does Lertlah School focus on? Lertlah School focuses on strong academics and English language fluency through immersion with international teachers, within a setting that values Thai culture and traditions. The curriculum supports moral, intellectual, and social development through hands-on, child-centered learning that combines modern educational technology with Thai cultural values. ### Q: What is the school uniform? Lertlah uniforms follow a consistent palette across all three campuses — blue and dark blue-green checkered fabric with the school logo, white socks, and black shoes. Specifics vary by level: Kindergarten: Boys wear a front-buttoned collared shirt and checkered shorts; girls wear a checkered blouse with attached skirt and white-button waist detail. Primary: Boys wear a blue collared shirt tucked into checkered shorts; girls wear a blue blouse with elbow-length sleeves, a checkered necktie, and a checkered pleated skirt. Middle School: Same as Primary, with belt loops added for boys. Detailed item-by-item specs (fabric, pocket placement, button counts) are shared with families during enrollment. ### Q: What are the school bus and pick-up/drop-off rules? School bus and pick-up/drop-off rules are issued to ensure safety and efficiency, and apply uniformly across all three campuses: Every bus follows all traffic laws and is equipped with fire extinguishers, steel crowbars, glass hammers, air conditioning, working radio communication, drinking water and tissue paper, and the school's name, address, and contact number. Chaperones and drivers are polite and uniformed, do not smoke or use drugs on duty, undergo a physical and drug check each semester, carry a mobile phone to confirm the last student's drop-off, and may not pick up outsiders or parents during a route. Driving speed does not exceed 60 km/h, every bus is checked before each trip, all buses carry first-class insurance, and students are released only to parents or designated guardians. ## Campus Details ### Lertlah Petkasem Campus A pioneering campus offering both English and International Programs. Lertlah Petkasem Road is one of the three Lertlah campuses in Bangkok. The school welcomes prospective families to visit in person or follow the campus Facebook page for the latest activities. - **Address:** 1 Soi Petkasem 77 Lane 2-5, Khwaeng Nongkhanphlu, Nongkhame District, Bangkok 10160 - **Phone:** +66 2 809 9081 (ext. 1-3) - **Email:** lertlahphetkasem@gmail.com - **Facebook:** https://www.facebook.com/LertlahPetkasem - **TikTok:** https://www.tiktok.com/@lertlahschoolpetkasem - **Instagram:** https://www.instagram.com/explore/locations/345875846/lertlah-school-phetkasem/ - **Campus page:** https://lertlah.com/campuses/petkasem/ ### Lertlah Kanchanapisek Campus A model of holistic education rooted in academic excellence, virtue, and community values. Lertlah Kanchanapisek Road is one of the three Lertlah campuses in Bangkok. The school welcomes prospective families to visit in person or follow the campus Facebook page for the latest activities. - **Address:** 39/5 Moo 5, Kanchanapisek Rd, Khwaeng Bang Bon, Bang Bon District, Bangkok 10150 - **Primary phone:** +66 2 894 4771 - **Secondary phone:** +66 2 894 5400 - **Email:** kanchana@lertlah.com - **Facebook:** https://www.facebook.com/Lertlah.Kanchanapisek/ - **TikTok:** https://www.tiktok.com/@lertlahkan - **Campus page:** https://lertlah.com/campuses/kanchanapisek/ ### Lertlah Kaset-Nawamin Campus An innovation-driven campus with advanced ICT and a forward-thinking curriculum. Lertlah Kaset-Nawamin Road is one of the three Lertlah campuses in Bangkok. The school welcomes prospective families to visit in person or follow the campus Facebook page for the latest activities. - **Address:** 9/29 Prasert-Manukit Rd, Khwaeng Nawamin, Bungkum District, Bangkok 10230 - **Primary phone:** +66 2 943 9436 - **Secondary phone:** +66 2 943 9120 - **Email:** nawamin@lertlah.com - **Facebook:** https://www.facebook.com/LertlahKasetnawamin - **TikTok:** https://www.tiktok.com/@lertlahnawamin - **Instagram:** https://www.instagram.com/lertlah_kasetnawamin/ - **Campus page:** https://lertlah.com/campuses/kaset-nawamin/ ## Admissions Process Lertlah School welcomes children and families to its three bilingual campuses in Bangkok. Whether a child is starting nursery or transferring from another school, the admissions team guides families through every step — from the first visit to enrolment day. ### Five Steps to Joining Lertlah 1. **Contact a Campus** — Reach out to the campus closest to you — Petkasem, Kanchanapisek, or Kaset-Nawamin — to schedule a school visit. 2. **Schedule a Tour** — Meet our teachers, tour the classrooms and facilities, and see the Lertlah environment firsthand. 3. **Submit Application** — Complete the admissions form and provide the student's previous school records and required documents. 4. **Assessment & Interview** — A short age-appropriate assessment for the student, followed by a friendly family interview with the admissions team. 5. **Enrolment** — Once accepted, complete the enrolment paperwork, uniform fitting, and tuition arrangements. ### Admissions Contacts - **General admissions inquiries:** information@lertlah.com - **Employment inquiries:** hr@lertlah.com - **Per-campus contact:** see Campus Details above for direct campus emails and phone numbers.