This paper offers an insight into the design structure of physics video hooks that were developed by
the Science Education Resource design team in the school of education (SOE) in National University
of Ireland, Galway (NUI Galway). A hook, is an instructional technique used to stimulate student
attention (Hunter 1994, Lemov 2010), interest (Jewett 2013) and engagement (McCrory 2011, Riendeau
2013). The physics video hooks followed a design framework that is illustrated below by breaking
down the centre of gravity (COG) hook. Various design principles and elements embedded within the
COG hook are presented with examples and the time they occur within the video. The intention of this
article is that the design can be replicated and modified to aid teachers and designers in the
development of a multitude of classroom based multimedia resources.