<![CDATA[This research is motivated needs for teaching materials in the learning process. Expected that instructional materials teaching materials that are able to guide students to learn independently, easy to understand students, communicative language with students and improve students problem solving abilities. Meanwhile, the existing textbooks less train and guide students in solving a problem. Therefore, development of teaching materials in the form of modules on the square and triangle based material solutions. This type of research is the development of the 4-D model. Based on the results of testing the validity of the validator, indicating that the module is in a rectangle and a triangle material solutions at very valid criteria, with 3.46. based on the practicalities of the teachers and students indicate that the module is very practical categorize, which is 100% and 86.7%.]]>
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