This video clip investigates the sum of the interior angles of a triangle. A visually striking approach is used to show that these angles add up to 180 degrees.
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.
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SANDBOXmaths
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.