Student Body
356 students representing 42 nationalities
Lower School: 180
Middle School: 68 
High School: 108
77 Faculty, Teaching Assistants, and Specialists representing 10 nationalities with experience ranging from 3 to over 30 years.
Academic Program

International Baccalaureate Programs:
Course of Studies /
Lower School (Pre-K-5)
Grade level IB PYP Units of Inquiry, Balanced Literacy/Guided Rading, Everyday Math, English as an Additional Language Support, Music, Art, Physical Education, Movement & Dance, Serbian Mother Tongue and Foreign Language classes. 

Middle School (6-8) and High School (9-10)
Courses offered are the IB MYP curriculum.
Math, Science, Language and Literature, Language Acquisition, Technology, Physical Education, Individuals and Societies, Arts (Performing and Visual Arts).
Enrichment courses (Grades 6-8): Cooking, Creative Writing, Music Ensemble, Coding, Healthy Living, Art.
Electives (Grades 9-10): Design, Film, Music Ensemble, Yearbook.
Beginner language courses (Grades 6-10): German, Spanish, French. 
High School (11-12)
Courses offered are the IB Diploma Program curriculum. 
Language A1: English, Serbian, School-Supported Self-Taught Languages; Language B: English B, French B; Spanish B (online), Spanish ab initio (online); History: Europe, Psychology; Business and Management (SL and HL online); Economics (SL and HL online); Biology, Chemistry, Physics; Mathematics; Visual Arts, Theatre; Theory of Knowledge and CAS.
Average Class size
Council of International Schools (CIS)
New England Association of Schools and Colleges (NEASC)
Ministry of Education of the Republic of Serbia
After School
Activities are organized according to students’ interests every semester. Activities typically include: arts & crafts, marshal arts, basketball, soccer, study support, cooking, street dance, ballet, flag football, choir, SAT preparation, yoga, drama, ping-pong, baseball, lacrosse, chess club, science, creative writing, dance, band and individualized music lessons.
Basketball, soccer, volleyball, Knowledge Bowl, Math Counts, Speech & Debate, Choral Festival and Model United Nations (MUN).
College Placement
First graduating class was in 2006. One hundred percent of graduating classes go on to higher education. The goal of the college counseling program at ISB is to help students find the university that best fits their needs. Most ISB students apply to English-instruction universities in North America, the UK, and Europe.
Excursion Trips
Students in grades 5-12 take an annual academic/experiential learning trip. Subject areas also may have overnight trips  tied to the curriculum to a variety of locations in Serbia and Europe.