This paper presents the use of the ABCD model as a way to train teachers of English to write clear and specific objectives. It is stated here that most of the instructional objectives written by pre-service teachers are inadequately formulated. With this in mind, pre-service teachers (n = 46) were trained in writing instructional objectives through integrating the ABCD Model in the syllabus of Teaching Language Skills I. During micro-teaching sessions required in this course, the participants designed lesson plans which included objectives based on this model. The findings suggested that the model helped the participants to write clear objectives and to design activities accordingly, which is quite necessary in their future career. A bibliography is included.