The implementation of mathematics learning, especially in junior high school experiencing obstacles, one of which is the lack of learning materials linking the subject matter with the context of students' daily life. Also, there are a limited of learning materials paying attention to the aspects of students' character development. This study aimed to develop a valid and practical mathematics ... [Show full abstract] learning materials using a contextual teaching and learning approach oriented on the character education. The subjects of the study were Year 7 students in one of junior high school in North Aceh, Indonesia. Data were collected through the expert validation for learning materials, observation of the learning process and questionnaire of students' response. The expert validation results obtained for the lesson plan, student's book, worksheet, teacher's book, and achievement test showing highly valid criteria. The results of observation for the teachers' skill in implementing the learning materials and students' activities as a good category. The results of students' responses towards the learning materials and the implementation of learning were also positive. It is recommended that further research will test the effectiveness of the learning materials to examine the impact on the more students.