The Elementary School at ISB currently accommodates 197 students in 7 year groups: Early Learning Centre 1-3 (3-5 year olds) and Grades 1- 5 (6-10 year olds). Each class has at least one homeroom teacher and, depending on size, possibly a second teacher or a classroom aid or a teaching assistant.
The school has been implementing the International Primary Curriculum (IPC) since 2003. All classes attend regular lessons in ICT, Drama,, Music and Sport which are taught by specialty teachers. Grades 2 through 5 take German as an additional language and Grade 5 Students are also timetabled for short introductory courses in French and Spanish.
The ever-expanding school library has a broad range of fiction and reference books. All classes visit the library to encourage reading and research.