 Additionally, the school offers a four-year course focusing on mathematics, physics and computer science.The students are usually divided into six homerooms per year, each housing about 30 students, randomly (except the MYP) at the start of their tuition, and then sorted later on, based on their chosen field of study; each homeroom has the same class timetable throughout the year (once again, except the IB Diploma programme, to which all the students as well as outsiders have to pass the entrance exam, and have a choice of subjects).This method is commonly used by the B&H Matura programme, but deviates from EU and USA methods.