Geoboard Rectangles | English | German | isiXhosa
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.
VISUALmaths
VITALmaths
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.
APPLETmaths
The APPLETmaths site consists of a selection of GeoGebra applets that were developed by students and
researchers for their research projects.
