Hello World - Issue 12 - March 2020From https://helloworld.raspberrypi.org/issues/12In issue 12 of Hello World, we bring you resources and in-depth discussions about how to teach machine learning from preschool (yes, really!) through to university. From neural networks and natural language processing, to ethical dilemmas and widening participation, we’ll show you how and why to introduce this technology to your learners now. Also in this issue: Learning graphs: tools to map learners’ progressionThe case for using pseudocode in the classroomHow picture books can be used to introduce programming conceptsElectronics activities from university outreachAnd much more.