Principled eclecticism is a language teaching method that combines various approaches and methodologies depending on the lesson aims and student abilities [SENTENCE 1]. It uses methods like grammar translation, direct method, structural situational, audio-lingual, bilingual, communicative language teaching, total physical response, and the silent way [SENTENCE 2]. The advantages are that the teacher has flexibility, no language skill is ignored, there is variety in class, and the atmosphere is dynamic [SENTENCE 3].