Google Classroom is just one way to package your assignments. You could easily include all of this information and attachments on other platforms like Canvas, Schoology, etc. You could also package your assignment in a Google Doc, Google Slide, or other online file and simply link to the “...
There’s no real incentive to cheat here, because if a student doesn’t teach herself the skill, it will show up in the mini-assessment for that target: The mini-assessment IS scored by the teacher, and students are not given an answer key for it. What does class time look like?“...