Vivi Ardiani Wenyi Pengarang Johnson W. Haan Dosen Pembimbing 2 Prof. Drs. Tans Feliks, M. Ed., Ph. D Dosen Pembimbing 1 Josua Bire Penguji 2 Johnson W. Haan Penguji 1 Feliks Tans Ketua Penguji

Descriptive text is one of the available texts which is difficult enough to be learned by the students in English Lessons. In writing descriptive text, students often need some help. Students usually feel they need help to organize their ideas. Furthermore, many students needed help building and developing their imaginations. Therefore, the Kahoot application is a teaching media to assist students in improving their ability to write descriptive text. The main objectives of this study were; 1) to find out the improvement of students' writing ability of Descriptive Text of 2nd Grade Students of SMPK Geovani Kupang by using the Kahoot application. 2) To determine the strengths and the weaknesses in students' descriptive text writing of 2nd Grade Students of SMPK Geovani Kupang. 3) To find out specific procedures of Kahoot application to improve descriptive text writing ability of 2nd Grade Students of SMPK Geovani Kupang. This research used qualitative and quantitative descriptive methods with a pre-experimental pretest-posttest design. The participants in this study were second-grade students of Giovani Junior High School. The writer used the instrument for this research's data source, which were pretest and posttest done by the students. The data were analyzed and tabulated, then studied based on the average score that the students received and also their writing abilities in writing descriptive text. The findings show that 1) there are improvements in students writing ability, with the t-test results showing the value sig. (2-tailed) < 0.05 means that there is a significant difference between the pretest and posttest results. 2) Based on the pretest, there are ten students with a poor level of ability, 11 students with a good level of ability, and two with an excellent level of ability. At the same time, in the posttest, there are three students with an excellent level of ability, 13 students with a very good level of ability, three students with a fair level of ability, and three students with a good level of ability. Key Words: Descriptive text, Kahoot Application, Writing Ability, Quasi Experimental.