Kindergarten: 20 students per class to 2 teachers (Teacher and Teaching Fellow)
Grades 1-4: 25 students per class to 2 teachers (Learning Expert Teacher and Subject Expert Teacher)
Grades 5 and above: 25 students per class to 1 Subject Expert Teacher (though class size tends to decrease towards grades 11 and 12 as studies become more specialized)
More important is the BASIS.ed principle that the performance of the teacher has a vastly greater impact on student learning than the number of students in the room. This has been proven by the Gates Foundation, and is tested year after year in BASIS.ed classrooms. Many of our teachers would suggest that classroom discussion and academic vitality would not be improved by fewer children; but quite the opposite effect would occur.
Read more about the different types of teachers present in our classrooms.