Heads up about the business side of this: selling to primary & secondary schools, esp outside of the US, is 8/10 difficult.
Specifically, even if the teachers are fully championing your solution, they do not wield any sort of purchasing authority (and sure as hell won't pay from their own wallet). Purchasing authority's incentive-structure does not align with "teacher happiness", "optimal schedule", or most things one would imagine being the mission of the school. It is, however, critical for them to control all sw used inside the school, and might actively discourage using non-approved vendors.
Whose job is it typically to create the schedule? Do those people have political power in schools?
If your marketing point is "better schedules", then yes, it is about the benefit for teachers and students, and no one important cares about that. However, if your marketing point is "easier to make schedules", suddenly the school administration has an incentive to care.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
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