NAU High School Math Day Schedule TimeEvent TimeEvent 8:30-8:50arrival at du Bois Ballroom and registration 8:50-9:00welcome 9:00-9:45team competition 9:45-10:00break 10:00-10:25seminar I 10:30-10:55seminar II 11:00-12:30 face-off and awards Open table in new window