Learning design of reciprocal proportionality using airplanes contex

The aim of the study was to produce a learning trajectory of reciprocal proportionality using airplanes context. In the process of learning mathematics in school, the teacher be the center of learning make students become passive. This causes learning to be boring and difficult to understand subject matter. The research method uses a research design with three stages, namely preliminary, design of experiment (pilot experiment & teaching experiment) and retrospective analysis. The participants of the research are 25 students in junior high school number 12 Palembang. The results show a series of track student activity initially linking capabilities with new information that it receives. Retrospective analyses of teaching experiment showed that using airplanes take off as a context; the method can support students learning of reciprocal proportionality.