books.google.co.uk - This volume grew out of a symposium on discourse, tools, and instructional design at Vanderbilt University in 1995 that brought together a small international group to grapple with issues of communicating, symbolizing, modeling, and mathematizing, particularly as these issues relate to learning in the...http://books.google.co.uk/books/about/Symbolizing_and_Communicating_in_Mathema.html?id=HGynuODTRlYC&utm_source=gb-gplus-shareSymbolizing and Communicating in Mathematics Classrooms