or 2,363 > 1,990. This shows that is rejected and Ha is accepted, meaning there is a significant influence between the experimental class students and the control class students on the final skill. The details of students' grades in writing skills before using flash card media in learning are class A (control class) at the pretest there are 2 skilled students, 24 students are quite skilled, 14 are less skilled students. In class B (experimental class) there are 2 students in the skilled category, 20 fairly skilled students, 18 less skilled students. The details of students' scores on writing skills after using flash card media in learning are class A (control class) at the time of the posttest. There are 3 skilled students, 30 fairly skilled students, 7 unskilled students. In class B (experimental class) there are 5 highly skilled category students, 5 skilled students, 28 quite skilled students, and 2 less skilled students. Effect Size analysis results of 0.5. Based on the results of the study, it was shown that the use of flash card media influenced the writing skills of students' narrative essays and the magnitude of the influence of flash card media included in the medium category." />