The purpose of this study is to develop mathematics learning based on a scientific approach to support the process of learning mathematics in understanding understanding mathematical concepts. This research method is to use research and development with 4D models. The 4D model consists of four steps: determining, designing, developing and disseminating. The results showed that the visual aspect was 87.50%, which means that this mathematics teaching material has a very good visualization. Then for the aspect of software engineering is 94.44%, which means that mathematics teaching materials are very easy to use and access. Then for the implementation aspect is 83.33%, which means that mathematics teaching materials can be an alternative support for increasing student motivation and self-regulation. Furthermore, for content accuracy is 87.5%, which means that mathematics teaching materials have very good content accuracy. Then for the presentation aspect is 70.83% included in both categories. Then for the evaluation aspect is 77.78%, which means the evaluation instruments in mathematics teaching materials are varied and quite difficult. Then for aspects of language is 91.67%, which means the language used in mathematics teaching materials is very communicative, easy to understand, and in accordance with students' cognitive development.