Part of the "Fernstudienangebot" produced in Germany by experts for teachers and education majors worldwide. This nineteenth volume presents current methodology of identifying and correcting student errors so that it becomes an optimal learning opportunity for the student. The major emphasis in the text is on identifying correcting oral and written errors, be it self, peer, or teacher correction. Written entirely in German, this is an excellent resource for any language teacher, student teacher, or teacher trainer.