Purpose: The paper examines ways of building small groups, the advantages, and the difficulties of group-work in the classroom, as well as the necessary elements of cooperative learning processes. Furthermore, it examines the possibility of implementing the Frayer model in the jigsaw classroom. Methods: The paper combines a brief literature review on group-work, collaborative learning, the Jigsaw Classroom, and the Frayer Model and presents examples from classroom practices using a combination

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... f the Jigsaw Classroom with the Frayer Model in Greek schools. Results: Key findings support the argument for implementing the Frayer model in the jigsaw classroom for teaching a foreign language and other learning subjects, both in Primary and Secondary education. Implications: Instructional practices which combine the Frayer Model and the Jigsaw Classroom can contribute to the reinforcement of grammatical, lexical, syntactical, and mathematical learning in diverse Primary and Secondary School classrooms.