Searching for mathematical concepts being indicated in a document is not easy
with the existing technologies because the current information retrieval
technology has been designed for words and mathematical concepts are often made
of more than single words. Skills-text-box is an approach to this retrieval
problem: it lets users use the classical search by words paradigm to search for
the concept then identify it by choosing through a finite list. Skills-text-box
is the device used to support the search engine of i2geo.net: at contribution
and search time.
In this paper, we sketch the current technical development Skills-text-box, and present its advantages and limits as have been experimented by multiple mathematics teachers in Europe.
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