On the Timetable tab, fill each period from Monday to Friday with the subject you teach, chosen from a dropdown. On the Lesson Plans tab, add one row per lesson: the week, day, subject, strand, sub-strand or topic, learning outcomes, activities, resources and a reflection, then set the status to Planned, Delivered or Postponed. The Topics Covered tab lets you list your term's topics and mark each Not started, In progress or Covered as you go.
The Summary counts your periods, your lessons planned and delivered, your delivery rate and the share of topics covered, all worked out for you. Yellow cells are the only ones you type in; every other cell is a locked formula, and the status columns colour themselves so progress is obvious at a glance. It opens in Excel, WPS or Google Sheets, with no macros.