Team teaching is conducted in the two thirds of primary and junior secondary schools, especially in mathematics and Japanese language. Small group teaching is conducted in the half of primary schools, especially in mathematics, and also in the two thirds of junior secondary schools, especially in English and mathematics. More additional teachers are allocated to schools for small group teaching than for team teaching.

Principals and teachers evaluate more positively small group teaching than team teaching. Small group teaching is supposed to be effective for academic subjects.