How much can/should quotes from student evaluations be edited when preparing a teaching statement?
In general, quotes should always be edited as little as possible.

The only changes you should make are:


Truncations to remove sections of quotes that aren't relevant for your purposes.
Edits to fit the grammatical structure of the existing sentence.
Correcting small errors in the original text.


However, any changes to the quotation must be clearly indicated. Truncations should be marked with an ellipsis (" . . . "), while all other changes should be indicated using square brackets.