A student can change their daily status color by doing more activities. The daily status is based on all activities the student has done today, and is largely based on the percentage of answers that were correct vs. wrong.
Technically, a status change occurs every time a student completes an XtraMath session! If you look at your online class report or student report while the student is still working in XtraMath, you will see a gray incomplete icon… But when they finish their session, refresh the page and you will see the updated icon: a red, yellow, or green checkmark.