Each college at Purdue has a counseling office with academic advisors who can answer questions about academic degree requirements and procedures.
Even prospective students are encouraged to contact an academic advisor for information about being a Math major or Math minor. An Advisor will help you understand your options before you get here, and keep you on the right track through your years of study.Consult the Undergraduate Academic Advising Office website for more information and a complete list of of College of Science Undergraduate Advisors.
If you are thinking about changing your major or aiming for a dual major (officially called Change of Degree Objective or CODO), be sure to contact your current advisor and/or a Math advisor. You will also need the CODO Requirements for Mathematics.
Sample Plans of Study can be found on the Majors and Minors information page.