Character building value in current teaching materials is still at the notification stage. It means that this materialstill doesn’t provide the opportunities for students to feel and to replicate those charactervalues in teaching learning process. Therefore, it is necessary to develop the teaching materials that are arranged based on learning model supporting student activeness that is discovery learning. Developed teaching materials should have the good criteria such as valid, practical and effective. The purpose of this study is to determine the level of validity and practicality of teaching materials developed. This research method uses a Mc Kenney’s development model, which is devoted to stage 2, namely: prototyping phase: expert test and practice test by students and teachers. Based on the results of the validity test obtained data that teaching materials based on character building with the discovery learning modelare in the category of valid with an average score of 3.7 and it is in a category very valid. Furthermore, the stage of practicality is done by giving questionnaire to teachers and students. The score of the teacher’s response 77.3% (practical) and the score of the students’ response is 85.83% (very practical).

Mentoring is one of the learning methods which is effective to supervise the student to have qur'anic morals. Some efforts had been done with appropriate approaches to gain the effectiveness of mentoring. The purposes of this research are to find out the students' types of behavior which are the approach used in buildingtheir quranic morals. The research method was descriptive qualitative with non participant observation, interview added with document. Next, triangulation was done to the participant and the expert. Findings show there the students types of behavior included students' indiscipline in making school environment clean, their unawarenessof social environment, the students' habit in bullying. The second finding is that the approach used was mutual advice on the truth and patience. Based on the findings, the researcher suggests the school officials to maintain their morals by controlling their behavior inside and outside of the school during their education. It is also suggested to the school managers to meet with alumni periodically in order to maintain their quranic morals.