<![CDATA[Developing students’ biography writing skills requires instructional materials that facilitate idea generation, information organization, and coherent text construction. However, conventional learning resources often provide insufficient guidance and visual support to address students’ difficulties in producing well-structured biographical texts. This study aims to develop biography writing teaching materials based on the Picture and Picture learning model for tenth-grade senior high school students and evaluate their validity, practicality, and potential effectiveness. Employing a research and development (R&D) approach, the study adopted the ADDIE instructional design framework, encompassing needs analysis, design, development, implementation, and evaluation. Data were collected through observations, interviews, questionnaires, expert validation, documentation, and students’ writing assessments involving Indonesian language teachers and tenth-grade students from two senior high schools in Semarang Regency. The findings revealed substantial instructional needs, with 96.77% of students requiring more comprehensive explanations of biography text types and 91.94% expressing interest in Picture and Picture-based learning. Expert validation yielded an average feasibility score of 86.50%, indicating that the developed materials were suitable for classroom implementation after minor revisions. Teacher evaluations demonstrated highly positive acceptance, while student responses ranged from 87.74% to 89.68% across the assessed dimensions. Furthermore, students achieved average biography writing scores of 83.93 and 83.91 at the two participating schools, respectively, both categorized as good. These findings indicate that integrating sequential visual representations, structured writing guidance, and literacy-oriented activities offers a feasible and practical instructional resource for biography writing. The study contributes to Indonesian language education by extending the Picture and Picture model from a classroom teaching strategy into an integrated teaching material development framework.]]>
