Alan Schoenfeld - some of his important papers Paul Ernest - home of Philosophy of Mathematics Education Journal David Tall - conference papers and other publications Jim Wilson - courses on problem solving and technology Demana-Waits - papers on (graphing) calculators Barry Kissane - papers on graphing calculators Lynn Arthur Steen - papers on quantitative literacy Michael de Villiers - papers on geometry and proof Deborah Ball - papers on Mathematical Knowledge for Teaching