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After nearly five years of Hello World, we’re delighted to welcome you to our first-ever
special edition, The Big Book of Computing Pedagogy! This special edition focuses on
approaches to teaching computing in the classroom, and includes some of our favourite
pedagogically themed articles from previous issues of Hello World, as well as a couple of neverseen-
before pieces. It is structured around twelve pedagogical principles, originally developed by
the Raspberry Pi Foundation for the National Centre for Computing Education in England. These
principles, which are introduced on page five, are based on up-to-date research about the best
ways of approaching the teaching and learning of computing.