No outside materials for class, but I recommend these books on the subject: 

Uneducation Vol 1 - A Residential School Graphic Novel - by Jason Eaglespeaker. Native authored and illustrated, PG version available for all ages, uncut version for mature high school students and up. 

Fatty Legs - by Christy Jordan-Fenton - middle grades level story about an Inuit girl taken to boarding school, Native authored

I Am Not a Number - by Jenny Kay Dupuis,  Kathy Kacer, Gillian Newland, Native authored, middle grades level story about a First Nations child (Canada) taken to boarding school

There are many more Native authored books on the subject for young readers. A good list can be found here: https://wowlit.org/blog/2016/08/01/native-american-childrens-books-on-indian-residential-schools/

Learners will not need to use any apps or websites beyond the standard Outschool tools.

This subject can be intense. While I keep the content of the class at an age appropriate level, the subject of how the children were treated in these schools can be upsetting.  I don't gloss over the truth, but I am careful to teach it in a way that students can understand and process. I do address issues of physical abuse, starvation, disease, deaths, and unmarked graves. I do not address sexual abuse for this age group. I will be showing a video that is a fictional recreation of children being removed from their families and taken to boarding schools. It can be upsetting to some viewers, but it is age/grade level appropriate. It is from the TNT series Into the West.