Good morning @fbrown!
Thank you for taking time to post in the PowerSchool Community! The 'Assignments' list may be adjusted to display the most recent assignments at the top of the page rather than at the bottom. To do so, you will want to navigate to the 'Activities' tab and select 'Assignments'. From there, clicking the 'Due' filter enables you to arrange the order from newest to oldest and vice versa. I have included a screenshot below as well to provide a visual representation of where this filter may be found:
PowerSchool Community Moderator