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Hypothetical Learning Trajectory for Uniform Motion and Gradient Using the STEM Approach

Learning in the fields of science, technology, engineering, and mathematics (STEM) has developed into a meta-discipline. Learning in all four fields is focused on the emergence of innovative solutions to a complex contextual problem facing the world today. The purpose of this study was to describe the design of teaching and learning about uniform motion in science and gradient of a line on Mathematics using the STEM approach. The type of research used in this study was the design of the Gravemeijer and Cobb models which consist of three phases. The exposure presented in this paper was only limited to the first phase of design research. The research subjects in this study were class VIII of SMPN 2 Yogyakarta. The instrument used in this study is the hypothetical learning trajectory. In the design made by researchers, researchers will experiment with dropping mahogany trees from a certain height. From this experiment, researchers will build understanding and meaning of the concepts of regular straight motion and straight line gradients.