Abstract
This study aims to produce electronic teaching materials based on guided inquiry that are feasible and practical to use in science learning to increase learning motivation. The type of research used is research and development using the 4-D development model. According to experts, electronic teaching materials are assessed based on feasibility, the practicality of use based on student assessments, and the effect of using electronic teaching materials on increasing student learning motivation. The instruments used in this study consisted of teaching material of feasibility assessment sheets, practicality sheets, and learning motivation questionnaires. The results showed that: 1) the developed electronic teaching materials had a feasibility level with a value of 77.0 or with eligibility criteria in the good category, 2) the practicality of electronic teaching materials based on student response assessments had a practicality level with a value of 93.0 or with the criteria very good, 3) the electronic teaching materials developed are effective for increasing students' learning motivation.