Teacher's functions are to teach, educate, guide, direct, assess, and evaluate the students in the learning activities. The implementation of learning activities requires a politeness rapport between teachers and students. The famous Indonesian education figure is KH. Ahmad Dahlan. It is necessary to find the historical facts, social events, and learning activities during KH Ahmad Dahlan's time as a reflection of the implication of the current learning activities. This study aimed to describe (1) a teacher politeness concept based on KH. Ahmad Dahlan's thoughts, and (2) its implication on early childhood learning activities. This study used a qualitative approach, literature study, and collected the data by using interviews with teachers and Muhammadiyah organization figures. The obtained data were analysed by content analysis based on Miles and Huberman models. The study result is expected to display a concept based on KH. Ahmad Dahlan and politeness practice of early childhood teachers via an online and offline learning process. The study result can be used by academicians and practitioners in the teacher politeness implementation on the early childhood learning strategy via an online and offline learning process. As for UPI campus and Muhammadiyah, they can use the study result as a guideline to develop and strengthen the early childhood teacher candidates' characters, especially related to teacher politeness based on KH. Ahmad Dahlan's thought.