Abstrak
Writing is an English language ability that many students still struggle with. This study aimed to improve the writing skills of eleventh-grade students at SMK Kesehatan Kaltara Tarakan by applying the Think-Talk-Write (TTW) strategy. This research was conducted using the Classroom Action Research (CAR) method. consisting of two cycles, which included planning, action, observation, and reflection stages. The research subjects were 22 students from class XI-Pharmacy. The data of this study were analyzed using qualitative and quantitative methods. The results showed that applying the TTW strategy significantly improved students' ability to write descriptive text. In the first cycle, most students experienced difficulties in writing. However, after implementing the TTW strategy in the second appropriate linguistic features, and composing paragraphs coherently. Quantitative data supported these findings, with the percentage of students meeting the minimum completion criteria increasing from only 5% in the first cycle to a much higher percentage in the second cycle. The observation results also indicated an increase in students' involvement, participation, and motivation in the writing process. Based on these results, it can be concluded that the Think-Talk-Write strategy was effective in improving students' descriptive writing skills and can be recommended as an alternative method in learning English writing at SMK Kesehatan Kaltara Tarakan.