The Math Ed Forum 149 Gila Hanna, Eric Muller, and Nathan Sidoli at one of the Math Ed forum meetings at the Fields Institute, 2002. In the summer of 1999, the Fields Institute applied for and was awarded the contract to update the high school math curriculum. When the Ontario government moved from five years of secondary education to four, there was quite a commotion over what was to happen to the final year math courses. A brief “calculus war” broke out, and the Minister of Education tapped Fields and Tom Salisbury to provide advice on what to do. This was a big deal that involved many people at many levels, and it had a significant effect on the way forward for mathematics at the secondary level. At https://brocku.ca/cmt/mdm4u/ readers can view an example of this work which provided mathematics teachers examples of students’ individual projects in the new Mathematics of Data Management (MDM4U) grade 12 mathematics course.