BAILICHE, Mohamed AYMENAli Cherif, SMAINEGHRIBI, SARA2025-07-032025-07-032025-06-19http://dspace.univ-temouchent.edu.dz/handle/123456789/6388Our study seeks to prove the effectiveness of cooperative pedagogy in strengthening lexical competence among fourth-year middle school students. Thus, we have compared the results of individual learning with those of cooperative team training. The study of the collected information indicates that students participating in cooperative activities significantly enrich their vocabulary compared to those who work individually. Therefore, cooperative pedagogy presents itself as an appropriate didactic resource to improve the lexical skills of students, which is difficult to achieve through strictly individual work.frcooperative pedagogy,individual work ,group work ,development ,lexical skillspédagogie coopérative ,travail individuel ,travail de groupe ,amélioration , compétences lexicalesالتربية التعاونية العمل الفردي؛العمل الجماعي؛التطوير؛المهارات المعجميةThesis