Real world mathematical modeling activities can develop needed and valuable 21st century skills. The knowledge and skills to become adept at mathematical modeling need to develop over time and students in the elementary grades should have experiences with mathematical modeling. For this to occur elementary teachers need to have positive…

Lynn Arthur Steen, Professor Emeritus of Mathematics at St. Olaf College and former President of the Mathematical Association of America, is recognized widely for the extraordinarily valuable leadership he has given in undergraduate mathematics education, at his college, nationally, and internationally. This article outlines some of his remarkable…