The application of learning models that are adopted from outside and then adapted in schools requires students and teachers to learn to change their teaching and learning behavior. Constructive interaction between students and their peers, students and teachers, student-teacher problems are very difficult to condition. So far, teachers often use the group work model in their learning. However, in this learning model, the group division of students is still less heterogeneous, it does not pay attention to the level of intelligence, or the background of the students. A'Bulo Sibatang's learning model emphasizes collective attitudes or behaviors in working or helping among each other in an orderly collaborative structure in groups of two or more people. The success of the work is greatly influenced by the involvement of each member of the group itself. The A'bulo sibatang learning model views that success in learning must not only be obtained from the teacher, but also from other parties involved in learning, namely peers. So the success of learning in this learning model is not only determined by the ability of the individual as a whole, but the acquisition will be good if done together in small groups in a structured manner. This type of research is development research that uses Plomp development modifications, the stages starting from 1) initial investigation, 2) design, 3) realization, and 4) testing, evaluation and revision. The instrument used in this study was a validation sheet for learning devices, an assessment sheet for effectiveness and practicality, an observation sheet for implementation, a student response questionnaire and a test of learning outcomes. The data collected is then analyzed quantitatively to lead to the validity and practicality of developing this learning model. Based on the results obtained, a'bulo sibatang-based mathematics learning is declared valid and meets the effective criteria and the level of practicality of the model is in the high category. This learning model is expected to be used as an alternative that can be used in mathematics learning based on local wisdom which can foster students' enthusiasm and interest in learning mathematics.