The School Day

The school day for all students begins at 7:50 am. Students need to arrive and register on the card system before 7:50 am otherwise they will be marked late. Repeated lateness may result in after school detentions. All classes start at 8:05 am. There is a morning break of 15 minutes and a 45-minute lunch break. The length of lessons is 55 minutes. This is to facilitate activities prior to the start of lunch thereby ensuring that the school is all-inclusive in terms of full-time and part-time students. For full-time students, classes finish at 4:00 pm and for part-time students who study the Khmer National Curriculum, classes finish at 5:00 pm.

After School Arrangements

There are several arrangements in place for students at the end of the ISSR High School day. Students can return home by bicycle or moto as long as safety measures are followed, or on the school bus. Fees for the school bus are discussed during enrolment. Parents who are collecting students from the Full-Time English Programme must collect their son / daughter promptly between 4:00pm and 4:15pm. Parents collecting students from the Part-Time Khmer English Programme must collect their son / daughter promptly at the time scheduled for the end of the Khmer Programme should that end later than the International Programme. The school will not be held responsible for students who are left behind unless special arrangements have been made with the school administration. Parents will be contacted if continual late pick up issues arise.

School Rules and Policies

All parents are requested to make themselves aware of the school policies that apply in the day-to-day life of their son / daughter. These school policies cover all aspects of the educational provision as well as broader managerial issues. They inform and protect all members of our school community. Policies can be viewed in the school office at any time. The main school Policies directly affecting parents and students are outlined on the following pages.


The ISSR school uniform consists of a royal blue polo shirt with logo and loose-fitting dark trousers or skirts. No light blue denim, ripped clothing, logos, sandals, flip-flops, high heels or open-toed shoes are allowed. Students must wear the school PE kit and suitable sports shoes for physical activities. Students can wear minimal jewellery and accessories, but no make-up, coloured contact lenses, nail varnish or tattoos. Teachers may ask students to remove any item that poses a risk. Students must have a valid reason for not wearing the uniform and have respectable hairstyles. The uniform must be worn for expeditions and exams unless otherwise instructed. Parents will be notified of any recurring issues with uniform or appearance.


All students are expected to attend the full school term each year. This routine ensures good progress for your child’s education. The school calendar is printed in this booklet and also available on our website High School Academic Calendar or from Administration. Should any unforeseen calendar changes occur, parents will be informed by email, letter and on the school’s website.


ISSR High School students have a daily schedule from 07:50 to 16:00 or 17:00 depending on their status. They must register their attendance with an ID card and be in their form room by 08:00. If they are late, they must report to the office and explain why. Parents must also inform the school if their child is late for any reason. Repeated lateness will result in a meeting with the Principal and Form Tutor.


Regular attendance is essential for students’ education at ISSR High School. Parents have the following responsibilities when their children are absent from school or need to go home early: They must call the school office before 07:50 if their child is sick and inform the staff of the reason and duration of the absence. They must also notify the staff earlier if their child takes the school bus to avoid transport delays. They must inform the office in advance if their child has to leave or miss school for any other reason and provide the details of the absence. They must accept the teacher’s decision if their child is sick during the school day and needs to go home. They must not allow their child to call them during the school day to ask for permission to go home early. They must expect a phone call or an email from the school if their child has recurring attendance problems. They must not let their child call the office to explain an absence; that is the parents’ role.

Authorised and Unauthorised Absences

The school has different policies for authorised and unauthorised absences. Authorised absences are those that have a valid reason, such as illness, family emergencies, or religious observances, and are supported by a note or letter from a parent or guardian. Unauthorised absences are those that do not have a valid reason or a note or letter from a parent or guardian. The school may arrange a conference with parents if a student has many unauthorised absences. The school also requests that parents avoid planning vacations during term time and inform the school in advance if they have to do so. In case of a long absence, parents should contact the relevant teachers to get the assignments and work schedule for their child. When the student returns to school, they must bring an absence slip signed by a parent or guardian.

Mobile Phones and Electronic Devices

The school does not allow social media and games of any sort while a student is under its legal guardianship (in loco parentis). Students can use phones only when they have permission from a teacher or a staff member, or when they need to contact their parents after school or for pickup purposes. They can also use approved apps or websites for classroom instruction or research. Students must keep their devices in the locker provided by the school, unless a teacher asks them to bring them to class. The devices must be on silent mode and the school is not liable for any loss, theft or damage of devices. The school discourages writing assignments and documents on the phone and encourages using laptop/notebook computers instead. The school may confiscate the devices until the next Monday and ask the parents to collect them if the students do not follow these rules.