This resources includes digital monthly calendar or planner for google slides and google sheets for the current school year. It includes free yearly updates. There is a slide/sheet for each month that includes a notes section along with showing the previous month and the upcoming month on the side. The slides version is partially editable while the google sheets version is fully editable.

This can also be used for team planning purposes. If you have multiple teachers teaching the same class you could use this as a calendar for the class or for daily prep. I typically add in events or duties that I have for the week at the top of the day.