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Curriculum Advanced Placement (AP), American Curriculum
Taught languages English, Mandarin, Thai
Typical class size 18
Strengths Sport, STEM, Academic Enrichment
Clubs Academic and Intellectual, Arts and Creative, Cultural and Language, Social and Hobbies, Community and Service, Leadership and Professional, Lifestyle and Wellbeing
Stages Preschool, Elementary, Middle School, High School
Introduction
Chiang Rai International School (CRIS) opened in 2010 and is situated on an 11-rai (approximately 4.5-hectares) campus about 3 km north of Chiang Rai city center, in a semi-rural area that is gradually becoming suburban and commercial. The campus is surrounded by mountains and lies roughly an hour away from the Golden Triangle, where Thailand, Laos, and Myanmar meet.
CRIS follows an American-style curriculum: in primary and secondary levels, the school uses Common Core State Standards for English Language Arts and Mathematics, Next Generation Science Standards (NGSS) for Science, and AERO standards for Social Studies. Core subjects in the upper grades include English, Math, Science, Social Studies, plus physical education, music, art, Chinese, ICT, Bible instruction, electives, and Thai language and culture.
Boarding options are available, with separate accommodation for boys and girls. Boarders typically share twin rooms and are supported through a “buddy” mentorship system, and live within a structured community where houses are led by senior students.
496 Moo 5, Rimkok Sub-District, Muang District, Chiang Rai 57100
Gallery
The school has not added photos
Vibes and Culture
The school has not added this information
The Essentials
Chiang Rai International School has 250 pupils, typical class sizes of 18, instruction in English.
Location
Chiang Rai International School sits on a campus about 3 km north of Chiang Rai city centre in Northern Thailand’s Rimkok sub-district, in a semi-rural setting that’s gradually becoming more suburban and commercial as the city expands. The site covers around 11 rai (4.5 ha) of land.
Stages
CRIS serves children from Preschool (around age 3), through Primary (Elementary), Middle, and up to Secondary (High School) levels.
Type
The school is co-educational and offers both day and boarding options.
Additional learning support
CRIS offers support tailored to individual student needs in collaboration with teachers and families, aiming to help students engage effectively with the curriculum. Specific programs such as dedicated learning assistance were not detailed on the website.
Country affiliation
The school is not affiliated with any country.
Religious affiliation
The school has no religious affiliations.
School day structure
A typical school day begins at 7:45 a.m. Daily hours run from 7:30 a.m. to 4:00 p.m., with Primary students dismissed at 3:00 p.m., and Secondary students at 3:15 p.m.
Bus service
There is not enough information available about the school's transportation services.
Diving Deeper
The school has not added this information
Fees
Annual tuition at Chiang Rai International School ranges from THB 170,250 to THB 404,600 for 2026/27.
Kindergarten: THB 64,200 per semester / THB 128,400 per year Grades 1–3: THB 83,400 per semester / THB 166,800 per year Grades 4–6: THB 96,300 per semester / THB 192,600 per year Grades 7–9: THB 108,700 per semester / THB 217,400 per year Grades 10–12: THB 120,600 per semester / THB 241,200 per year
Other Annual Costs
Resource Fee (G1–G12): THB 25,000 (once-off per new enrollment) Book/Technology Fee: THB 3,000–5,000 (varies by grade) Semester Registration Fee: THB 7,500–17,500 (varies by grade) Meals: THB 10,500–21,000 per semester (varies by grade) Accident Insurance: THB 750 per semester Student Card: THB 150 per semester PTG Fee: THB 500 per semester
Boarding Fees
THB 180,000 per year (includes three meals daily, utilities, and laundry service)
Optional Costs
After School Activities: Fees vary by activity
Billing & Payment Terms
Fees are due in full before the start of each semester. A 5% discount applies if tuition is paid annually in advance. Late enrollment (after 45 days) receives a 25% discount on tuition and meals for that semester. Sibling discounts: 10% for the second child, 15% for the third child. Overdue accounts incur a 1.25% monthly penalty from the 7th of each month.
Refund Policy
Refunds only apply to tuition and meals when written notice is given at least two weeks in advance of withdrawal at the April or October break. Claims must be made within three months of withdrawal.
Academics
Chiang Rai International School teaches Advanced Placement (AP), American Curriculum for students aged 3 to 18.
Curriculum
CRIS delivers a full American-based curriculum across all school stages, built around Common Core Standards for English Language Arts and Mathematics, the Next Generation Science Standards (NGSS) for Science, and AERO Standards for Social Studies.
In Preschool and Elementary, students follow these frameworks and also attend co‑curricular classes in Physical Education, Music, Art, Chinese, ICT, Bible, and Thai Language & Culture.
In Middle School, students continue studies in core subjects—ELA, Math, Science, Social Studies—while choosing from electives and co‑curricular offerings that include Chinese, ICT, Bible, and Thai language & culture.
At the High School level, the curriculum advances to include courses such as Geometry, Algebra, Calculus, Statistics (Math); Earth Science, Biology, Chemistry, Physics (Science); and World History, Economics, Global Citizenship (Social Studies), alongside continued co‑curricular subjects like Music, Art, Chinese, ICT, Bible, and Thai language & culture.
1. Submit an Application Form Parents can complete either the online application form or a printed version. Once the form is received, the school reserves an appointment slot for an admissions evaluation.
2. Interview and Entrance Assessment All new applicants attend a short interview followed by an entrance assessment. For Grades 1–12, the assessment can be done on campus or online; for Kindergarten 1–3, assessments must be done on campus.
3. Assessment Content The assessment evaluates school readiness, English proficiency, Mathematics and Science skills, and ensures correct grade placement.
4. Review of Supporting Documents After passing the entrance evaluation, the admissions team reviews the required supporting documents before making an offer of enrolment.
5. Appointment Confirmation The admissions team contacts parents to confirm the date and time for the evaluation. An evaluation fee is payable before the assessment takes place.
6. Offer of Enrolment If the evaluation and documentation meet the requirements, the school may issue an official offer of enrolment.
Scholarships
The school does not publicly disclose any scholarship programmes on its website. They do post about scholarships on their socials seemingly frequently.
Waitlist
The school does not publicly state that it operates a waitlist or pool system.
School Events
The school has not added events
FAQs
What curriculum does CRIS follow?
CRIS follows an American-based curriculum using Common Core Standards, NGSS for Science and AERO Standards for Social Studies, with AP courses in high school.
Does the school offer boarding?
Yes, CRIS offers boarding with one house divided into boys and girls halves. Boarders share twin rooms with 24/7 supervision, fingerprint access and CCTV security.
What are the fees at CRIS?
Annual tuition ranges from 128,400 THB for Kindergarten to 241,200 THB for Grades 10-12. Boarding fees are 170,250 to 404,600 THB per year. Enrolment fee is 50,000 THB.
What age range does the school serve?
CRIS serves students from Preschool (age 3) through Grade 12 (age 18).
What are the school hours?
The school day begins at 7:45 am. Primary students are dismissed at 3:00 pm and Secondary at 3:15 pm. Campus hours run 7:30 am to 4:00 pm.
What accreditations does CRIS hold?
CRIS is accredited by WASC and is a member of ISAT and ASEAN.
What languages are taught?
English is the main language. Thai language, culture and history are taught. Chinese is offered as an additional language. An ELD programme supports non-native English speakers.
What facilities does the campus have?
The 11-rai campus features a football pitch, indoor gymnasium, swimming pool, science lab, computer lab and library.
How many students attend?
CRIS has approximately 238 students.
Does the school offer AP courses?
Yes, AP courses include 2-D Art and Design, Drawing, Art History and Music Theory among others.
Where is the school located?
CRIS is on an 11-rai campus about 3 km north of Chiang Rai city centre, near the mountains and roughly an hour from the Golden Triangle.
When was CRIS founded?
CRIS was established in 2010 as the first purpose-built international school in Chiang Rai. Its first graduating class was in 2016.
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