The objectives of this research were as follows: (1) to develop learning activities in science and technology subjects using inquiry-based learning for seventh-grade students (12-13 years old); (2) to develop academic achievement for the topic of elements and compounds using inquiry-based learning management activities to meet the 70% requirement; and (3) to assess the satisfaction of seventh-grade students who are taught with inquiry-based learning management. The target group of this study was 24 seventh-grade students on the science and technology course. The research tools included seven inquiry-based learning management plans, an achievement test, and a satisfaction assessment. The results show that synthesizing the approach to learning management using inquiry-based learning led to the formulation of learning activities. Students had better academic achievement, with a mean score of 81.45%, which was above the 70% requirement. Students were satisfied with inquiry-based learning activities, with an average of 4.75 and a standard deviation of 0.48, which is the highest level.