Derbouche, AssiaHamadouche, Mokhtar2018-06-272018-06-272016http://hdl.handle.net/123456789/3650Vocabulary learning has always been a challenging yet a very important task for second/ foreign language learning. On the light of vocabulary importance, the present dissertation attempts to investigate the effectiveness of online games in improving learners' target language vocabulary. In this respect, one main research hypothesis has been set forward that if learners play an online game then, this will have a positive impact on their vocabulary repertoire. For the sake of bringing relevant data to the present study and test the research hypothesis, both a qualitative and a quantitative methods have been opted for. An experiment design was conducted to investigate the extent to which the online games namely "criminal case" can improve learners' vocabulary. Then, a questionnaire was submitted to investigate participants' attitudes toward the use of criminal case in vocabulary learning. On the basis of the results and findings, the research hypothesis was confirmed in that using online games actually meet the requirements of a language learner to master the target language vocabulary in an enjoyable way. Therefore, it is recommended that teachers set the enjoyable learning conditions that online games bring and draw students' attention to such tools focusing on their educational value.enTeaching : english : EFL : vocabulary : collaborative learningOther