Teachers’ preferred teaching methods are of the utmost importance. The aim of this qualitative study is to examine 47 primary and secondary-school teachers’ (1) teaching method preferences, (2) reasons for group work preferences, and (3) implementation paths for the methods they use. Results show that (1) teachers mostly prefer direct instruction; group work is the second preference; (2) permanent learning, physical conditions, and comprehensive programs are the result of the preference; (3) while teachers are implementing the cooperative method, they implement activities and projects at all levels, form the groups themselves based on students’ qualifications, and see the highest success in 4th, 6th, and 11th grades.