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devoted to providing a national forum for the improvement of the instruction of the mathematics in the first two years of college.
http://www.amatyc.org/
includes info on the state's education department initiatives, as well as links to other math related sites.
http://www.amtnys.org/
supports and enhances the work of teachers and promotes the learning of mathematics.
http://www.aamt.edu.au/
Aims to promote better teaching and learning of mathematics from preschool to tertiary.
http://www.nzamt.org.nz/