An exploration of the angle at the centre of a circle theorem that emphasises the centredness of the angle in relation to angles at the circumference of the circle.
The VITALmaths and VITALmathsLIC site consists of a databank of short and funky video clips that
specifically interrogate the conceptual aspects of a mathematical idea, process or concept. Some of the video
clips contain strategic dialogues to encourage appropriate mathematical talk and conversation.
SANDBOXmaths is a collection of more experimental video clips done by students in their mathematics
teacher-training classes and researchers wishing to use specific video clips in their teaching and research.