LOOPY: a tool for thinking in systems

Taking a creative, no-risk, hands-on approach is an excellent way to develop your understanding and familiarity with systems-thinking. LOOPY is a part of Explorable Explanations, a movement for active learning. This intuitive and accessible software tool gives you the opportunity to create interactive simulations and ask "what if?" questions by simply drawing and connecting circles and arrows. LOOPY is open source and public domain, and therefore free to use.