My wife is a math teacher and trying to figure out a good workflow for her team has been illuminating. Only the one true desktop Word has a good formula editor

My wife is a math teacher and trying to figure out a good workflow for her team has been illuminating. Only the one true desktop Word has a good formula editor, so they have to use that... and only SharePoint provides a good "open and save" workflow. So SharePoint it is. Anything to get them off timeshares.