Development of Teaching Materials of Exposition Text

Abstract

This study aims to produce teaching material development in the form of exposition text student worksheets, describe the feasibility of exposition text student worksheets, and find out the effectiveness of student worksheets for class X high school students. This research is a development research. The development model adapts Borg and Gall's research and development procedures to the stages of (1) potential and problems; (2) data collection for LKPD needs; (3) developing LKPD through product design and developing initial product forms; (4) product evaluation through validation by relevant experts/experts; (5) revision of the validation product design; (6) peer-to-peer product trials and limited-scale class trials and revisions to the trial results followed by large-scale class trials; (7) carry out the final stage of revision. The results of the study showed that (1) the students' worksheets on exposition texts had been developed according to the Borg and Gall concept, (2) according to the Borg & Gall concept and were declared very feasible by learning material experts, learning media experts, and practitioners with a percentage of 92.75 %, 95.00%, and 96.15%; (3) based on a comparison of the pretest, posttest, and N-Gain from the use of exposition text LKPD developed to get a value of 0.43 and 0.44 included in the "moderate" category so that it is effectively used in learning.