This document presents the background and methodology for a study investigating the impact of the Write-Pair-Share strategy on improving students' writing ability. It discusses how writing is an important but difficult skill for students. The study aims to see if Write-Pair-Share can help tenth grade students at a vocational high school in Samarinda improve their writing achievement. The methodology will involve pre- and post-tests to assess students' writing ability before and after using Write-Pair-Share. Related work has found that strategies like Think-Pair-Share and Write-Pair-Share can positively influence students' writing performance.