Krakow Primary Bilingual (9-11 years old) Krakow Primary Plus 1A (6-7 years old) Krakow Primary Plus 1B (6-7 years old) Krakow Primary Plus 2 (7-8 years old) Krakow Primary Plus 3 (9-11 years old) Krakow Primary Plus 4 (9-11 years old) Krakow Primary Plus 5 (9-11 years old) Krakow Primary Plus 6 (9-11 years old) Warsaw Primary Bilingual (9-11 years old) Warsaw Primary Plus 1A (6-7 years old) Warsaw Primary Plus 1B (6-7 years old) Warsaw Primary Plus 2 (7-8 years old) Warsaw Primary Plus 3 (9-11 years old) Warsaw Primary Plus 4 (9-11 years old) Warsaw Primary Plus 5 (9-11 years old) Warsaw Primary Plus 6 (9-11 years old)