Agus Mulyana Ketua Penguji Ambuy Sabur Dosen Pembimbing 1 Marrieta Moddies Swara Penguji 1 Isnaniah Dosen Pembimbing 2 Tenia Ramalia Penguji 1 Mitahul Janah Pengarang

Mitahul Janah, NIM: 1605020060, “The Effect of Using Instagram as Media on Students’ Writing Skill at Tenth Grade of SMAN 20 Kabupaten Tangerang in Academic Year 2020/2021”, Skripsi, Pendidikan Bahasa Inggris, Fakultas Keguruan dan Ilmu Pendidikan Universitas Islam Syekh-Yusuf Tangerang. The objective of this research was to know whether there is a significant effect of Instagram technique on the students‟ writing skills at the Tenth Grade of SMAN 20 Kabupaten Tangerang in Academic Year 2020/2021. The population of this research was the tenth-grade students‟ of SMAN 20 Kabupaten Tangerang. The samples are 70 students of 10 MIPA 1 and 10 MIPA 4. This research used Quasi-Experimental. The research data is collected through pre-test and post-test. The result of this research was a statistical calculation by Kolmogorov-Smirnov test, it is known the significances of the pre-test and post-test in experimental class data is 0.001 < 0.005. It is concluded that Ha is accepted and Ho is rejected. It means there is a significant difference in using Instagram on writing skills. Therefore, it can be concluded that there is a positive effect of Instagram improve students‟ writing of writing skills at the tenth grade of SMAN 20 Kabupaten Tangerang in the academic year 2020/2021. Keywords: Writing Skill, Instagram