The following material was removed from the Waldorf education article but relates to a more general article about looping in education:
There is evidence to support that the continuity afforded by "looping" fosters learning in students.[1][2] Other evidence indicates substantial downsides to looping, in that:
- it restricts the ability of teacher to perfect a lesson through repetition;
- conflict or tension between students and teachers is not always resolved and can endure from year to year;
- lapses in an instructor's teachings are not necessarily corrected later on by a different instructor.