USA / Canada, Serbia, UK, France, Germany

Entry Age Learning Phase IBO Model ISB Model USA/Canadian Model Serbian Model UK Model French Model German Model
(Cut-Off Date: September 1)
3 Early Childhood PYP Pre-Kindergarten 3 Pre-Kindergarten 3 Vrtić Nursery (F1) PS Kindergarten / Vorschule
4 Pre-Kindergarten 4 Pre-Kindergarten 4 Reception (F2) MS Kindergarten / Vorschule
5 Lower School Kindergarten Kindergarten Predškolsko Year 1 GS Kindergarten / Vorschule
6 Grade 1 Grade 1 1. razred Year 2 CP Grade 1
7 Grade 2 Grade 2 2. razred Year 3 CE1 Grade 2 
8 Grade 3 Grade 3 3. razred Year 4 CE2 Grade 3 
9 Grade 4 Grade 4 4. razred Year 5 CM1 Grade 4 
10 Grade 5 Grade 5 5. razred Year 6 CM2 Grade 5 
11 Middle School MYP Grade 6 Grade 6 6. razred Year 7 Sixième Grade 6 
12 Grade 7 Grade 7 7. razred Year 8 Cinquième Grade 7 
13 Grade 8 Grade 8 8. razred Year 9 Quatrième Grade 8 
14 High School Grade 9 Grade 9 (Freshman) 1. razred Year 10 Troisième Grade 9 
15 Grade 10 Grade 10 (Sophomore) 2. razred Year 11 Seconde Grade 10 
16 DP Grade 11 Grade 11 (Junior) 3. razred Year 12 Première  Grade 11 
17 Grade 12 Grade 12 (Senior) 4. razred Year 13 Terminale Grade 12 
18               Grade 13 

Spain, Italia, Australia, China

Entry Age Learning Phase IBO Model ISB Model Spanish Model Italian Model Australian Model Chinese Model
(Cut-Off Date: September 1)
3 Early Childhood PYP Pre-Kindergarten 3 Educacion Infantil Scuola dell'infanzia Pre-School  
4 Pre-Kindergarten 4 Educacion Infantil Scuola dell'infanzia Pre-School Kindergarten
5 Lower School Kindergarten Educacion Infantil Scuola dell'infanzia Kindergarten /Prep Kindergarten
6 Grade 1 Primaria 1 Prima Year 1 Year 1
7 Grade 2 Primaria 2 Seconda Year 2 Year 2
8 Grade 3 Primaria 3 Terza Year 3 Year 3
9 Grade 4 Primaria 4 Quarta Year 4 Year 4
10 Grade 5 Primaria 5 Quinta Year 5 Year 5
11 Middle School MYP Grade 6 Primaria 6 Prima Year 6 Year 6
12 Grade 7 Secundaria Obligatoria Seconda Year 7 Year 1
13 Grade 8 Secundaria Obligatoria Terza Year 8 Year 2
14 High School Grade 9 Secundaria Obligatoria Prima Year 9 Year 3
15 Grade 10 Secundaria Obligatoria    2nd Cycle Seconda Year 10 Year 1
16 DP Grade 11 Secundaria Obligatoria    2nd Cycle Terza Year 11 Year 2
17 Grade 12 Bachillerato 1 (College Prep) Quarta Year 12 Year 3
18       Bachillerato 2 (College Prep) Quinta