Although this article addresses the student teaching model used in K12, I think this would make a for a rewarding template in Higher Ed. Especially in situations where the TA aspires to become a faculty member after graduation.
The article describes a more appealing approach than traditional student teaching – in which a teacher candidate starts out as a passive observer and then takes over the teaching after a few weeks-has become a part of the University of Southern Indiana’s teacher preparation process. That’s because classroom teachers are becoming increasingly reluctant to turn over their students to a novice for long stretches in an age when teacher pay and tenure are tied to student improvement and performance. “Teachers are beginning to be reluctant to host a student teacher,” said Joyce Rietman, director of USI’s advanced clinical experience and co-teaching. “Their name is on (the) test scores. It’s scary and risky to take a student teacher.” The article is from the Hechinger Report.
The full article can be found here: http://hechingerreport.org/content/indiana-universities-rethink-student-teaching_12564/