This study aims to find out about the results of the development of teaching materials of experience-based explanatory text writing on the class XI students of SMA Negeri Unggul Aceh Timur. The research method used is research and development (R & D) proposed by Vienna Sanjaya refers to Borg & Gall model. The subjects consisted of 3 students with individual test, 9 students with small group test, and 32 students with limited field test. The data collection techniques used observation, interviews, questionnaires and writing test of explanatory text. The results showed that: (1) material expert validation included the content feasibility with an average of 88.09% on very good criteria, the presentation feasibility with an average of 89.05% on very good criteria, and the language aspects with an average of 90 , 9% with very good criteria, (2) the design expert validation with an average of 91.25% on very good criteria, (3) the teacher response with an average of 89.17% on very good criteria, (4) the individuals with an average of 75.26% with good criterion, (5) small group test with an average of 81.88% on very good criteria, and (6) limited field test with an average of 92.81% on criteria very good. The results of the students’ explanatory text writing test before using the module is 77,66, while the result of the students’ explanatory text writing test after using the module increased by 90,15. The difference is 12.49 from before to after. This proves that the improved teaching materials of explanatory text writing can improve the students’ learning achievement by using experienced-based learning methods.
Keywords: Experienced-Based Learning Method, Explanatory Text, Improvement Of Teaching Materials
