If you haven't already done so, activate and use your free NAU Grammarly for Education premium account! Grammarly is your online writing assistant! It is "designed to help improve your grammar, spelling, punctuation, and academic (and professional) writing." It suggests revisions to your writing as you are writing!
Go to your D2L homepage and read the announcement, "Are you using Grammarly yet?" Follow the directions in the announcement to access your free Grammarly for Education account.