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This study aims to produce device learning development using CABRI 3D software on geometry with problem-solving method was oriented on critical thinking ability and student achievement in good quality. This material has been developed that can be used as reference materials for teachers as implementation of learning mathematics in the class. Utilization of device learning development using CABRI 3D software on geometry with problem-solving method was oriented on critical thinking ability and student achievement at junior high school which are the criteria of a valid, practical, and effective. It can be seen from the teacher's assessment against the lesson plan, is student worksheet, tests the ability of critical thinking and learning achievement test that meets the criteria specified on the practicality of this research in all aspects of the votes obtained a category very well. While the practical assessment of students meets the criteria because of the percentage of students who reach the category of well over 80%. In addition, the results of observational learning wisdom show that the average percentage exceeds 75% so that the results of observation wisdom learning achieve practical criteria and activities learning can be done well. Keywords--Device Learning Development, CABRI 3D, Problem-Solving Method, and Critical Thinking Ability

Device Learning Development Using Cabri 3d With Problem-Solving Method Based On Oriented Critical Thinking Ability And Learning Achievements Of Junior High School Students