Of course it's easier to teach a smaller homogenous group than a large diverse group. Doesn't make sense to try to find a one size fits all solution for a prob

Of course it's easier to teach a smaller homogenous group than a large diverse group. Doesn't make sense to try to find a one size fits all solution for a problem with a multitude of unique aspects: culture, race, language, income, etc. In Finland on the other hand it does, because they are all the same culturally, racially, economically and speak the same language.