SUMMARY
This study aims to analyze the development of web-based mathematics teaching materials using Moodle from the Learning Management System (LMS) with a Contextual Approach to Geometry in Grade VIII SMP. This research is a development research by adapting the Borg and Gall development model which consists of expert validation, small group trials and large group trials and uses the t-test as a measure of product effectiveness. Data collection techniques used questionnaires and written tests. Data analysis was carried out quantitatively using descriptive and inferential statistics. The results of the effectiveness test show that the t-table value is 2,988 with a significant level of 0.012 which is smaller than 0.025 (0.012 <0.025), based on these results, Ho is rejected, so there is an average difference between the experimental class and the control class. Based on these results, it can be stated that the product developed in the form of an E-mathematical module with a contextual approach is effective in improving student learning outcomes in geometry material.