Meningkatkan Penguasaan Kosakata Bahasa Inggris Siswa Menggunakan Strategi Pemasangan Kartu Indeks pada Siswa Kelas Tujuh di SMP Nasional Plus Indo Tionghoa Tarakan
The purpose of this study was to improve mastery of English vocabulary by applying index card installation strategies in the learning proses of seventh grade students at the SMP Nasional Plus Indo Tionghoa Tarakan. This study used a classroom action research (CAR) method. The method consist of two cycles and each cycle consist of three meetings. The study was conducted from February 5 to 21, 2020 at the school. All the 32 seventh grade students consisted of 16 males and 16 females were used as research subject. Data were collected through an observation list sheet to observe the learning process and a vocabulary test to check students' vocabulary mastery. The result showed that the students' success in the observation list was 91% for teacher and 87% for students in the second cycle. This proved that index card installation strategies were able to improve the mastery of English vocabulary of seventh grade students at the SMP Nasional Plus Indo Tionghoa Tarakan.