[2] King began his career as a geoscience educator at the Altrincham Grammar School for Boys from 1978 to 1996, where he taught Geology A-Level and other science subjects.
King was also a founder, director, and driving force behind the Earth Science Education Unit (EESU) at Keele University, which was active from 2002 to 2015.
[citation needed] In 2007, he became a founder of the Earth Learning Idea (ELI), website which freely provides regularly updated geoscience-focused activities for teachers and informal educators in ten languages.
In 2018, King garnered the support of IUGS and EGU to formally launch the program, leading to the appointment and training of Geoscience Education Field Officers.
The primary aim of the program is to address the growing devaluation of geoscience teaching[10] and to propose innovative pedagogical approaches[11] for non-higher education.
His adeptness at merging intricate geoscientific concepts with accessible educational content has offered invaluable insights, enriching global pedagogical practices.
His legacy, encapsulating insightful analyses and practical resources, supported to elevate the field, making geoscience education comprehensive and accessible globally.