This study aims to know the results of the development of teaching materials to write short story text based on 3M technique (copy-process-develop) students class XI SMA Negeri 3 Medan. The research method used is research and development (R & D) method proposed by Sugiyono refers to Borg & Gall model. The trial subjects consisted of 3 students with individual trials, 9 small group trial students, and 44 students with limited field trials. Data collection techniques used are observation, interviews, questionnaires and short story text writing tests. The research results show that (1) material expert validation includes content feasibility with an average of 85.22% on very good criteria, presentation feasibility with an average of 85.06% on very good criteria, and language aspect with an average of 88.54% on very good criteria, (2) design expert validation with an average of 87.06% on very good criteria, (3) teacher response with an average of 87.5% on very good criteria, (4) individual testing with an average of 78.46 % on very good criteria, (5) small group test with an average of 80.47% on very good criteria, and (6) limited field test with an average of 84.82% on very good criteria. The result of learning of writing short story text test by student before using module is equal to 74,65, while the result of learning writing short story text by student after using module increased equal to 84,54. The difference is 9.89 from before to after. This proves that teaching material for short story text developed can improve student learning outcomes by using short story text writing material based on 3M technique (copy-process-develop).
Keywords: 3M Technique (Copy-Process-Developing), Short Story Text, Teaching Material
