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This research aimed to produce set of teaching and learning material that feasible to mastery of student’s learning achievement based on inquiry learning in junior high school students. It consist of syllabi, lesson plans, Studentbook, Student work sheets, Learning achievement test. Dick and Carey model was used to develop this learning material. It implementation to students of SMP 4 Lamongan. The collection data using validation, observation, learning achievement test, and questionnaire methods. Data were using quantitative and qualitative descriptive techniques. The results showed that the developed learning materials were valid, practical, and affective to mastery of student’s learning achievement. Based on the results, it be concluded that set of teaching and learning materials developedis feasible to mastery of student’s learning achievement on the material organization of life in junior high school.

Inquiry Learning Model., Learning Achievement., Learning Material., Organization System of Life