The purpose of this study was to produce teaching material development in the form of discovery learning-based procedural text student worksheets, to describe the feasibility of discovery learning-based procedural text student worksheets, and to determine the effectiveness of discovery learning-based student worksheets for seventh grade junior high school students. This research is a development research. The development model adapts the research and development procedures of Borg and Gall with 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. Data collection techniques by observation, interviews, and questionnaires at Al-Hidayah Middle School. The results of the study showed that (1) the worksheets of exposition text students based on discovery learning 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 92.75%, 95.00% and 96.15%; (3) based on a comparison of the pretest, posttest, and N-Gain from the use of discovery learning-based procedural text worksheets developed to get a value of 0.43 and 0.44 included in the "moderate" category so that it is effectively used in learning.