What would you have done differently at the time, to ensure that native children received an education to help prepare them for a livelihood that didn't involve hunting or trapping?

I'd have located the schools directly on the reserves, which by allowing the students to go home to their families every day - just as non-native students did - would have prevented virtually all the sexual abuse that occurred, abuse which was repugnant.  The abuse was not all-pervasive, unlike what the so-called "Truth and Reconciliation Commission" would have us think, but that it occurred at all was a tragedy; even one is one too many, and my deepest sympathies go out to anyone who was abused at the residential schools.

Other than locating the schools within the native communities, I don't know what else could have been done.  Failure to provide education to native children would also have been abominable.