In 1990, I was part of a group (the Calculus Consortium based at Harvard) which was awarded a 5-year grant from the National Science Foundation to rethink the way college calculus should be taught. As an outgrowth of this grant we developed a new philosophy and syllabus of teaching calculus that focused on real-world applications, integrating numerical and graphical approaches with the traditional algebraic viewpoint. The ideas produced by the consortium were woven into a series of textbooks, now in their 4th edition, and published by Wiley, and translated into five languages.