3. Focus on Process
A critical part of the "flipped classroom" approach to b'nei mitzvah tutoring is the focus on study process, rather than having the student rely on the tutor to teach them in direct instruction.
In brief:
Don't just use "Repeat After Me" in a lesson
Give the student tools to self-assess as they study
Identify trouble spots in their chanting and help them understand what might be causing the trouble and how to fix it any time that problem recurs