The MAA is involved with a variety of mathematics meetings and conferences, many of which have opportunities for students to participate or present.
MathFest is held in early August each year. See below for a list of sessions in which students can present their work. This year's MathFest will be July 31-August 3, 2013 in Hartford Connecticut.
MAA Student Paper Session (for undergraduate students)
Pi Mu Epsilon Student Paper Session
The Joint Mathematics Meetings (JMM) are held in January each year. Take a look at the list below for sessions in which undergraduate students can present. The next JMM will be January 15-18, 2014 in Baltimore, Maryland.
AMS Contributed Paper Session
The MAA supports many regional undergraduate conferences; which are smaller conferences dedicates to giving undergraduate students a chance to present their work. Some conferences are for general mathematics, while others have themes like Sports Analytics or Mathematical Biology. Students should go to the supported conference page to find information about the conferences planned for the current year.
In addition, regional MAA Section meetings welcome student participation, with many Sections scheduling student paper sessions and holdding special student paper or poster competitions. Find out which section you are in and go to that section's website to find out more about that section's meetings.