A geoboard is used to explore "hollow rectangles" - i.e. rectangles containing no inner nails. A formula based on the number of border nails is proposed to calculate the area of such rectangles.
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.
You are here
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.