The Effectiveness of Cooperative Learning Using Vocabulary Flashcards on Students’ Mastery of English Adjectives

This article investigates the effectiveness of cooperative learning using vocabulary flashcards in improving students’ mastery of English adjectives. The research was conducted due to students’ limited vocabulary knowledge. The objective of this article was to examine whether the implementation of a cooperative learning model supported by vocabulary flashcards could enhance students’ adjective mastery and learning engagement. A pre-experimental research design with a one-group pretest–posttest a