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This is the main page of free teaching materials created with GeoGebra. The structure here is close to the US school system, but we also have an overview page for UK schools. If you also have created nice materials, please share them with us! See the GeoGebraWiki Help to find out how to add your own materials to the GeoGebraWiki.

"Free mathematics software for learning and teaching Interactive graphics, algebra and spreadsheet From elementary school to university level Free learning materials"

"Letters and symbols represent numbers and objects in mathematics. However, many of us are probably not aware that we use them in different ways. Below are the different uses of letters and symbols in algebra."

VERY, VERY Cool. And Fun