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The 2013 curriculum emphasizes student activity in the learning process, therefore, learning resources used are expected to support the curriculum. Learning resources used in schools are in the form of textbooks and worksheets which only contain a summary of material and assignments for students. This makes students unmotivated to learn mathematics. This study aimed at developing a valid, effective and practical mathematics learning module based on Realistic Mathematics Education (RME). The learning module intended to make it easier for students to understand the set material. This study used the 4D method, namely define, design, develop, disseminate. The product developed was a mathematics learning module that links up students' everyday experiences with mathematical concepts. The trial subjects in this study were expert subjects, namely material experts and media experts and the students of class 7D of SMP Sapta Andika Denpasar represented by 10 students as research samples. Data collection techniques were also in the form of a questionnaire conducted to measure the practicality of using the module in the learning process. the data were analysed quantitatively and qualitatively. The results of the study showed that, in terms of the validity of the product developed, it was valid based on the assessment of material experts and very valid based on the assessment of media experts. After completing the product trial process, the learning modules developed were effective and practical based on the test results and questionnaires conducted to teacher and students. The learning modules developed were ready to be used in the real learning process.

Module Development; Realistic Mathematic Education (RME); Set; 4D Method