Exposition Text Material Module Development in Class X Based on Approach Problem Based Learning

This research aims to produce an Expository Text Material Module in Class X Based on the Problem Based Learning Approach. The research method used is a quantitative descriptive research method and Research and Development development which refers to the Borg and Gall model. The development stages are the initial study phase, initial product development, and product testing. The results of the research show that the results of material expert validation on content suitability obtained an average of 94.1% with the "Very good" category, the presentation feasibility aspect obtained an average of 87.5% with the "very good" category and the language assessment obtained an average of 87 .5% in the "very good" category. For the graphic assessment by design experts, an average of 83.9% was obtained in the "very good" category. Product trials are carried out in three stages: individual testing, small group trials, and limited field trials. This proves that the expository text teaching materials based on the problem based learning approach are feasible, easy and effective for use with class X students at Madrasah Aliyah Negeri Labuhanbatu