teacher training
If you mean to talk about 'formación del profesorado', 'profesores formados', etc, the expressions you use in English are:
teacher training
trained teachers
teacher trainers (if you train teachers, you are a teacher trainer)
If you mean to talk about 'formación del profesorado', 'profesores formados', etc, the expressions you use in English are:
teacher training
trained teachers
teacher trainers (if you train teachers, you are a teacher trainer)