This paper explains the design of the course: "Introduction to Systems Thinking". This design uses Complexity Management tools from Organisational Cybernetics in order to teach Systems Thinking in general, and Organisational Cybernetics to Manage Complexity in particular. This design attempts to articulate theories, tools, and practices of systems thinking in a context in which students can develop their autonomy. The implementation of this design is a game, which models a social system. In this way, students learn how to make decisions by themselves in a complex environment.