Abstrak
Researchers found that the problem of mastery of Arabic vocabulary in Arabic language learning that students have, among others: Lack of student interest in education and teacher control in education, students do not understand Arabic vocabulary, teaching media does not help students to critical thinking, creativity, communication and collaboration. Researchers decided to study the influence media use Fun Thinker Book in the mastery of Arabic vocabulary students. The approach of this study is quantitative research with the type of experimental research design used is the pre-test post-test control group design. The steps to use the fun thinking book are: students lay tiles and discuss with group members the correct Arabic vocabulary answers on the right, write them on paper and then turn them over, after which they compare the pattern of colored tiles formed by the answers with the color pattern of tiles presented by the researchers in front of the class. Finally, students are required to memorize Arabic vocabulary and then proceed with writing short paragraphs in accordance with the subject matter. Among the tools for data collection are normality test, homogeneity test, and hypothesis test. The results of the study there is the effect of the use of fun Thinker Book method in the mastery of vocabulary in students as a result of hypothesis testing using the Test " T " (Independent Simple T Test), with the value Sig.(2-tai;ed) 0,000 0,05 therefore, the hypothesis is Ha accepted.