Drawing on research and the author\u27s experience, this paper presents descriptions and prescriptions regarding the controversial issue of use of L1 (first language) and of L2 (target language) in the foreign language classroom. In the context of her own practice, the author discusses and evaluates techniques and principles that include the use of the use of L1 as well as those that exclude it. This project will examine various interactions among the teacher, the learner, and the content as they relate to LllL2 use in the classroom. Awareness of the variables involved is the foundation for the teacher’s continual adjustment of her own L1IL2 use and of her expectations of learners\u27 use of and L2